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|
<html>
<head>
<title>Tableaunoir</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, target-densitydpi=device-dpi, initial-scale=1.0, minimum-scale=0.4, maximum-scale=1.0" />
<!--
, user-scalable=no
-->
<link rel="stylesheet" type="text/css" href="magnets/style.css" />
<script src="tableau.js"></script>
</head>
<body>
<div id="controls">
<span id="mobile_controls">
<span class="spanlink" id='themailto'></span>
<button class="bouton" id="buttonMenu" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0){ UI.open_menu();} else Menu.toggle();">☰</button>
<button class="bouton" id="buttonCancel" onmousedown="event.preventDefault()" title="Cancel last action" onclick="if (UI.focused!=0) UI.focused.undo(); else BoardManager.cancel();" >↩</button>
<button class="bouton" id="buttonLeft"
onmousedown="event.preventDefault()" onclick="if (UI.focused!=0)
UI.moveCaret(UI.focused,-1); else
BoardManager.left();" title="Go left">←</button><button id="buttonRight" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0) UI.moveCaret(UI.focused,1); else BoardManager.right();" title="Go right">→</button>
<button class="bouton" id="addmagnetbutton" title="Add or eval magnet" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0) UI.toggle($id('assistant_keys')); else {welcome.hidden=true;Welcome.hide();UI.addmagnet(container.scrollLeft, 100);}">+</button>
</span>
<span id="pc_controls">
<div id="readonly_msg" style="display:none">Readonly mode. Type w to unlock.</div>
<button id="buttonMenu2" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0){ UI.open_menu();} else Menu.toggle();">Menu</button>
<button id="buttonCancel2" onmousedown="event.preventDefault()" title="Cancel last action" onclick="if (UI.focused!=0) UI.focused.undo(); else BoardManager.cancel();">↩ Undo</button>
<button id="buttonRedo" onmousedown="event.preventDefault()" title="Redo last action" onclick="if (UI.focused!=0) UI.focused.redo(); else BoardManager.redo();">↪ Redo</button>
<button id="buttonLeft2" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0) UI.moveCaret(UI.focused,-1); else BoardManager.left();" title="Go left">←</button><button id="buttonRight2" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0) UI.moveCaret(UI.focused,1); else BoardManager.right();" title="Go right">→</button>
<span id="pc_controls_readonly_hidden">
<button id="buttonDivide" title="Divide the screen vertically in two">| Divide</button><span>d</span>
<button id="addmagnetbutton2" title="Add or eval magnet" onmousedown="event.preventDefault()" onclick="if (UI.focused!=0) UI.toggle($id('assistant_keys')); else {welcome.hidden=true;Welcome.hide();UI.addmagnet(container.scrollLeft, 100);}">Magnet</button>
<button id="buttonColors" title="Choose your color">🎨 </button><span>c</span>
<button id="buttonEraser" title="Switch between erase and draw">⌫</button><span>e</span>
<span class="spanlink" style="display:none" id='themailtopc'></span>
<span class="spanlink" style="display:none" id='thelink'></span>
<textarea id='theforumlink' style="display:none"></textarea>
</span>
<button id="buttonCloseControls" title="Hide this toolbar (it can be shown again in the menu)"
onclick="controls.hidden = true; welcome.hidden = true;">Hide</button>
</span>
</div>
<div id="online_help" style="display:none">
<textarea cols="9" id="helptxt"
title="Short help on a command" rows=1 onkeypress="if (event.keyCode!=13) return true;UI.addhelp('?',value); return false;"></textarea>
<button class="bouton" onmousedown="event.preventDefault()" title="Erase"
onclick="var helptxt=$id('helptxt'); UI.backspace(helptxt);">⌫ </button>
<button class="bouton" onmousedown="event.preventDefault()" title="Close"
onclick="$id('online_help').style.display='none';">X</button>
<div id="helpoutput" style="backgroundColor:white"></div>
</div>
<div id="assistant_cas" style="display:none">
<div id="assistant_menu">
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_math').style.display='block';" title="">Math</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_arit').style.display='block';" title="">Arith.</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_rewrite').style.display='block';" title="">Algebra</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_proba').style.display='block';" title="">Proba</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_math').style.display='block';" title="">Math</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_graph').style.display='block';" title="">Plots</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_statgraph').style.display='block';" title="">Stats</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_prog').style.display='block';" title="">Prog</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="$id('assistant_cas').style.display='none';" title="Close">X</button>
</div>
<div id="assistant_proba" style="display:none">
<button class="bouton" title="Random integer" onmousedown="event.preventDefault()" onclick="UI.insert_focused('randint(')">randint</button>
<button class="bouton" title="Random real" onmousedown="event.preventDefault()" onclick="UI.insert_focused('rand(')">rand</button>
<button class="bouton" title="Normal distribution" onmousedown="event.preventDefault()" onclick="UI.insert_focused('normald')">norm</button>
<button class="bouton" title="Exponential distribution" onmousedown="event.preventDefault()" onclick="UI.insert_focused('exponentiald')">exp</button>
<button class="bouton" title="Poisson law" onmousedown="event.preventDefault()" onclick="UI.insert_focused('poisson')">poisson</button>
<button class="bouton" title="cumulated distribution suffix" onmousedown="event.preventDefault()" onclick="UI.insert_focused('_cdf(')">cdf</button>
<button class="bouton" title="inverse cumulated distribution function suffix" onmousedown="event.preventDefault()" onclick="UI.insert_focused('_icdf(')">icdf</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Close">X</button></div>
</div>
<div id="assistant_math" style="display:none">
<input type="button" class="bouton" name="add_cos"
id="add_cos"
value="cos" onmousedown="event.preventDefault()" onClick="UI.insert_focused(value+'(')" title="cosinus function, type acos for arccosinus">
<input type="button" class="bouton" name="add_sin" id="add_sin"
value="sin" onmousedown="event.preventDefault()"
onClick="UI.insert_focused(value+'(')" title="sinus function, type asin for arcsin">
<input type="button" class="bouton" name="add_tan"
id="add_tan"
value="tan" onmousedown="event.preventDefault()"
onClick="UI.insert_focused(value+'(')" title="tangent function, type atan for arctangent">
<input type="button" class="bouton" name="add_ln"
id="add_ln"
value="ln" onmousedown="event.preventDefault()"
onClick="UI.insert_focused(value+'(')" title="natural logarithm">
<input type="button" class="bouton" name="add_ln"
id="add_log10"
value="log10" onmousedown="event.preventDefault()"
onClick="UI.insert_focused(value+'(')" title="log base 10">
<input type="button" class="bouton" name="add_ln"
id="add_exp"
value="exp" onmousedown="event.preventDefault()"
onClick="UI.insert_focused(value+'(')" title="exponential function">
<input type="button" class="bouton" name="add_ln"
id="add_floor"
value="floor" onmousedown="event.preventDefault()"
onClick="UI.insert_focused(value+'(')" title="integer part">
<input type="button" class="bouton" name="add_round"
id="add_round"
value="round" onmousedown="event.preventDefault()" onClick="UI.insert_focused(value+'(')" title="arrondi">
<input type="button" class="bouton" name="add_^" id="add_^" value="^" onmousedown="event.preventDefault()" onClick="UI.insert_focused('^')">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Fermer">X</button></div>
</div>
<div id="assistant_arit" style="display:none">
<button class="bouton" title="euclidean division remainder" onmousedown="event.preventDefault()" onclick="UI.insert_focused('irem(')">irem</button>
<button class="bouton" title="euclidean division quotient" onmousedown="event.preventDefault()" onclick="UI.insert_focused('iquo(')">iquo</button>
<button class="bouton" title="greatest common divisor" onmousedown="event.preventDefault()" onclick="UI.insert_focused('gcd(')">gcd</button>
<button class="bouton" title="least common multiple" onmousedown="event.preventDefault()" onclick="UI.insert_focused('lcm(')">lcm</button>
<button class="bouton" title="Extended GCD" onmousedown="event.preventDefault()" onclick="UI.insert_focused('iegcd(')">iegcd</button>
<button class="bouton" title="Primality testing" onmousedown="event.preventDefault()" onclick="UI.insert_focused('isprime(')">isprime</button>
<button class="bouton" title="Next prime number" onmousedown="event.preventDefault()" onclick="UI.insert_focused('nextprime(')">next</button>
<button class="bouton" title="Factor integer" onmousedown="event.preventDefault()" onclick="UI.insert_focused('ifactor(')">ifactor</button>
<button class="bouton" title="Fast modular powering" onmousedown="event.preventDefault()" onclick="UI.insert_focused('powmod(')">powmod</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Fermer">X</button></div>
</div>
<div id="assistant_prog" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('def f(x):\n return',0);" title="Function definition">def</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('return ',0);" title="Test">ret</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('if :',0);" title="Test">if</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('else :\n',0);" title="Test">else</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('while :\n',0);" title="Boucle tantque">while</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('for in range():\n',0);" title="Boucle dans un intervalle">range</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('print(',0)" title="Affiche">print</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('input(',0)" title="Affiche">input</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.menu_modules();" title="Affiche">import</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.close_menus();" title="Fermer le menu">X</button>
</div>
<div id="assistant_modules" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_math_module').style.display='block';" title="">math</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_arit_module').style.display='block';" title="">arit</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_linalg_module').style.display='block';" title="">linalg</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_graphic_module').style.display='block';" title="">graphic</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.close_menus();$id('assistant_turtle_module').style.display='block';" title="">turtle</button>
</div>
<div id="assistant_math_module" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('from math import *\n',0);" title="">import</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('exp(',0);" title="">exp</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('log(',0);" title="">log</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('cos(',0);" title="">cos</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('sin(',0);" title="">sin</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('tan(',0);" title="">tan</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('floor(',0);" title="">floor</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('round(',0);" title="">round</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('abs(',0);" title="">abs</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('sqrt(',0);" title="">sqrt</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('sign(',0);" title="">sign</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.menu_modules()" title="">x</button>
</div>
<div id="assistant_arit_module" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('from arit import *\n',0);" title="">import</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('ifactor(',0);" title="">ifactor</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('isprime(',0);" title="">isprime</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('gcd(',0);" title="">gcd</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('iegcd(',0);" title="">iegcd</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('pow(',0);" title="pow(a,n,m) calcule a**n modulo n">pow</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.menu_modules()" title="">x</button>
</div>
<div id="assistant_linalg_module" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('from linalg import *\n',0);" title="">import</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('matrix(',0);" title="">matrix</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('add(',0);" title="">add</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('sub(',0);" title="">sub</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('mul(',0);" title="">mul</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('inv(',0);" title="">inv</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('rref(',0);" title="">rref</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('det(',0);" title="">det</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('eig(',0);" title="">eig</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('transpose(',0);" title="">transp</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.menu_modules()" title="">x</button>
</div>
<div id="assistant_turtle_module" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('from turtle import *\n',0);" title="">import</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('reset(',0);" title="">reset</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('forward(',0);" title="">fd</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('left(',0);" title="">left</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('right(',0);" title="">right</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('pen(',0);" title="">pen</button>
<button class="bouton" onmousedown="event.preventDefault()"
title=". sur une ligne de commande pour afficher la tortue" onclick="UI.insert_focused(',',0);" title="">.</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.menu_modules()" title="">x</button>
</div>
<div id="assistant_graphic_module" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('from graphic import *\n',0);" title="">import</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('draw_pixel(',0);" title="">pixel</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('draw_line(',0);" title="">line</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('draw_rectangle(',0);" title="">rect</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('fill_rect(',0);" title="">filled</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('draw_circle(',0);" title="">circle</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('draw_filled_circle(,',0);" title="">filled</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused(';',0);" title="; sur une ligne vide affiche le graphique">,</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.menu_modules()" title="">x</button>
</div>
<div id="assistant_graph" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('plotfunc(');"
title="Graph an expression, for example plotfunc(sin(x),x===-5..5,xstep===0.1)">plot
</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('plotparam(');"
title="Graph a parametric curve, for example plotparam([cos(t),sin(t)],t===0..2*pi,tstep=0.1)">param
</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.insert_focused('plotpolar(');"
title="Graph a polar curve, for example plotpolar(sin(3*t),t)">polar
</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('plotimplicit(');"
title="Graphe an implicit curve, for example plotimplicit(x^2+x*y+y^2===3)">impl.
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('plotcontour(')"
title="2-var function levels">level
</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.insert_focused('plotfield(');"
title="Slopefield of a differential equation, for example plotfield(sin(t*y),[t===-5..5,y===-3..3],xstep===0.5,ystep===0.5))">field
</button>
<button class="bouton" onclick="UI.insert_focused('plotode(')"
title="Graph of a solution of a differential equation">ode
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('plotarea(')"
title="Area under curve">area
</button>
<button class="bouton" onclick="UI.insert_focused('plotseq(')"
title="Web graph of a recurrent sequence"
>u_n
</button>
<button class="bouton" onclick="UI.insert_focused('plotlist(')"
title="Draw points (i,y_i) for a list [y_i]"
>list
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Close">X</button>
</div>
<div id="assistant_statgraph" style="display:none">
<button class="bouton" onclick="UI.insert_focused('moustache(')"
title="Boxwhiskers">whisker
</button>
<button class="bouton" onclick="UI.insert_focused('histogram(')"
title="Histogram">histo.
</button>
<button class="bouton" onclick="UI.insert_focused('scatterplot(')"
title="Scatterplot">scatter
</button>
<button class="bouton" onclick="UI.insert_focused('polygonplot(')"
title="Polygonal line from a list of points"
>polyg.
</button>
<button class="bouton" onclick="UI.insert_focused('linear_regression_plot(')"
title="Linear regression plot"
>regr.
</button>
<button class="bouton" onclick="UI.insert_focused('bar_plot(')"
title="Barplot">bar
</button>
<button class="bouton" onclick="UI.insert_focused('plotcontour(')"
title="Level curves for a 2-var function"
>level
</button>
<button class="bouton" onclick="UI.insert_focused('plotarea(')"
title="Area under the curve"
>area
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Close">X</button>
</div>
<div id="assistant_rewrite" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('simplify(')"
title="Tries to simplify an expression.">simpl.
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('normal(')"
title="Expands, reduce to an irreducible fraction">normal
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('factor(')" title="Factorization, for example factor(x^4-1). Use cfactor to factor over C">factor</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('partfrac(')" title="Partial fraction decomposition. Use cpartfrac over C">partf</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('subst(')" title="Substitution">subst</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('reorder(')" title="Change variable order in a polynomial">reord</button>
<br>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('texpand(')"
title="Expand sin/cos/tan/exp/ln">texpand
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('tlin(')"
title="Linearize trigonometric expressions">tlin
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('trigsin(')"
title="Rewrite with sin">→sin
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('trigcos(')"
title="Rewrite with cos">cos
</button>
<button class="bouton"
onmousedown="event.preventDefault()" onclick="UI.insert_focused('halftan(')"
title="Rewrite in terms of tan of the half angle">half
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('trigtan(')"
title="Rewrite with tan">tan
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Close">X</button>
</div>
<div id="assistant_calculus" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('rsolve(')"
title="Solve a recurrence relation">r
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('solve(')"
title="Solve an equation or a system">solve
</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.insert_focused('limit(')" title="limit of an expression as a variable tends to a limite, for example limit(sin(x)/x,x,0). For unidirectional limit add 1 or -1 as last argument">limit</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('diff(')" title="Derivative of an expression. For a function f, for example f(x):=sin(x^2), the derivative of f is f', for example g:=f' or f'(2)">∂
</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('series(')" title="Taylor/series expansion, for example series(sin(x),x=0,5,polynom). Without the polynom option, no remainder term is returned. For unidirectional series expansion, add optional parameter 1 or -1 before polynom"> series
</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="UI.insert_focused('sum(')" title="Discrete sum, for example ∑(k,k,1,n) ou ∑(1/n^2,n,1,inf)"> ∑
</button>
<button class="bouton" onmousedown="event.preventDefault()" onClick="UI.insert_focused('integrate(')"
title="Integrals computation, for example ∫(x^2*sin(x)*exp(x),x) or ∫(1/(x^4+1),x,0,inf)">∫
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('ilaplace(')"
title="ilaplace: inverse Laplace transform">i
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('laplace(')"
title="Laplace transform">laplace
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('odesolve(')"
title="odesolve: differential equation numeric solver">o
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('desolve(')"
title="desolve: differential equation exact solver">desolve
</button>
<!--
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('ifft(')"
title="ifft: inverse fast Fourier transform">i
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('fft(')"
title="fft: fast Fourier transform">fft
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('invztrans(')"
title="invztrans:inverse z-transform of a rational fraction">inv
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('ztrans(')"
title="z-transform of a sequence">ztrans
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('grad(')"
title="Gradient">grad
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('hessian(')"
title="Hessien">hess
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('curl(')"
title="Rotationnel">rot
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('divergence(')"
title="Divergence">div
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('vpotential(')"
title="vpotential: potentiel vecteur">v
</button>
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.insert_focused('potential(')"
title="Potentiel">poten.
</button>
-->
<button class="bouton" onmousedown="event.preventDefault()" onclick="UI.close_menus()" title="Close">X</button>
</div>
</div>
<div id="assistant_keys" style="display:none">
<button class="bouton" onmousedown="event.preventDefault()"
onClick="if (UI.focused!=0) UI.tableaueval(UI.focused);"
title="Indente ou complète">OK
</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="if (UI.focused!=0) UI.moveCaretUpDown(UI.focused,-1);"
title=" ">↑</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="if (UI.focused!=0) UI.moveCaretUpDown(UI.focused,1);"
title=" ">↓</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="if (UI.focused!=0) UI.indent_or_complete(UI.focused);"
title="Indente ou complète">→|</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="if (UI.focused!=0) UI.completion(UI.focused,false);$id('online_help').style.display='block';"
title="Aide">?</button>
<button class="bouton" onmousedown="event.preventDefault()"
onClick="if (UI.focused!=0) UI.backspace(UI.focused);"
title=" ">⌫
</button>
</div>
<div id="content">
<canvas id="canvasBackground" width=16384 height=1200 ></canvas>
<canvas id="canvas3d" width=0 height=0></canvas>
<div id="container">
<div id="magnets"></div>
<svg id="svg" width=2500 height=800></svg>
<div id="cursors"></div>
<div id="palette" class="PaletteHide"></div>
<div id="board">
<canvas width=2000 height=800 id="canvas"></canvas>
</div>
</div>
</div>
<div class="pageNumberHidden" id="pageNumber">1</div>
<div id="welcome" style="display:none" class="MenuPanel">
<div class="divMenuHide"><button onclick="welcome.hidden = true">X</button>Esc.</div>
<h1>Welcome to Tableaunoir</h1>
<div class="explanation">
This <em>online blackboard</em> is ideally used with a <em>graphics
tablet</em>. Your audience is <em>concentrated
on the content</em> if you hide the toolbar and use keyboard shortcuts.
</div>
<div class="explanation">
<img src="magnets/welcome_magnets.png" />
You may create <em>magnets</em> (think of them as fridge magnets) for making
<em>interactive
courses</em>,
presentations and discussions with students.</em>
</div>
<!--
<div class="explanation">
<img src="img/shareInEverybodyWritesMode.png" />
Blackboards are sharable in order to <em>collaborate</em> with your friends (feature still in development).
Open the menu!
</div>
-->
<div class="explanation">
Work
best on
Firefox, Chrome or Chromium, last versions.
</div>
</div>
<div id="menu" class="menuHide MenuPanel">
<div class="tabs">
<button class="tablink" id="defaultOpen" onclick="Menu.openPage('MyBlackboard', this)">⎕ My Board</button>
<!-- button class="tablink" onclick="Menu.openPage('Share', this)"> Share</button> -->
<button class="tablink" onclick="Menu.openPage('Magnets', this)">🎊 Magnets</button>
<button class="tablink" onclick="Menu.openPage('Options', this)">⚛ Options</button>
<button class="tablink" onclick="Menu.openPage('KeyboardShortcuts', this)" id="defaultOpen">⌨ Shortcuts</button>
<button class="tablink" onclick="Menu.openPage('Help', this)" id="defaultOpen">? Help</button>
<button class="tablink" onclick="Menu.openPage('About', this)" id="defaultOpen">About</button>
<button class="tablink" onclick="Menu.hide();">OK</button>
</div>
<div>
<div id="menucontent"></div>
<div id="About" class="tabcontent">
<h2>About Tableaunoir</h2>
<div class="explanation">
Tableaunoir is an <em>online blackboard</em>. It is ideally used with a <em>graphics
tablet</em>. Your audience is <em>concentrated
on the content</em> if you hide the toolbar and use keyboard shortcuts.
</div>
<div class="explanation">
<img src="magnets/welcome_magnets.png" />
You may create <em>magnets</em> (think of them as fridge magnets) for making
<em>interactive
courses</em>,
presentations and discussions with students.</em>
</div>
<!--
<div class="explanation">
<img src="img/shareInEverybodyWritesMode.png" />
Blackboards are sharable in order to <em>collaborate</em> with your friends (feature still in
development). Open the menu!
</div>
-->
<div class="explanation">
Work best on Firefox, Chrome or Chromium, last versions.
<br>
Tableaunoirxcas is an <em>open source</em> project (GPL3 license).
It is a pure JavaScript fork of the 2020 November 1st
version of
<a target="_blank" rel="noopener noreferrer"
href="https://github.com/tableaunoir/tableaunoir.github.io">tableaunoir</a>
made by Francois Schwarzentruber.
It is
maintained by Bernard Parisse, you can get the <a target="_blank"
href="https://www-fourier.univ-grenoble-alpes.fr/~parisse/giac/xcashtml.zip">source
here</a>. It adds the opportunity to evaluate text magnets
with the Giac/Xcas CAS, <a target="_blank" href="https://micropython.org/">MicroPython</a> (Damien P. George et al)
or Javascript
(<a target="_blank" href="https://bellard.org/quickjs/">QuickJS</a> engine by
Fabrice Bellard and Charlie Gordon).
It may be used offline (unzip the source above and open the file index.html).
</div>
</div>
<!-- <h2>Videos</h2>
<a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/watch?v=P6_lhqiPBow">Video of
that presents tableaunoir (in french)</a>
-->
</div>
<div id="MyBlackboard" class="tabcontent">
<span id="share_submenu" style="display:none;">
<h2>Share</h2>
<span class="spanlink" id='themailtomenu'></span>
<span class="spanlink" id='thelinkmenu'></span>
<textarea id="forum_url" cols="60" rows="1" onkeypress="if (event.keyCode!=13){ return true; } event.preventDefault(); if (value=='') UI.eraseCookie('xcas_forum_url'); else { UI.forum_url=value; UI.createCookie('xcas_forum_url');} this.blur();">https://xcas.univ-grenoble-alpes.fr/forum/viewforum.php?f=25</textarea>
Warning <button id="warnlink_yes" onclick="UI.set_warnlink(true);">Yes</button>
<button id="warnlink_no" onclick="UI.set_warnlink(false);">No</button>
</span>
<h2>Read-only</h2>
<button id="readonly_yes" onclick="UI.set_readonly(true) ; Menu.hide();">Yes</button>
<button onclick="UI.set_readonly(true); BoardManager.cancel(0); Menu.hide();">Presentation</button>
<button id="readonly_no" onclick="UI.set_readonly(false) ; Menu.hide();">No</button>
<h2>Export</h2>
<button id="png_export" onclick="UI.png_export($id('export_filename').value+'.png')">PNG</button>
<button id="pdf_export" onclick="UI.pdf_export($id('export_filename').value+'.pdf',0)">PDF</button>
<button id="pdf_export_inverted" onclick="UI.pdf_export($id('export_filename').value+'.pdf',1)">PDF inverted</button>
<textarea id="export_filename">blackboard</textarea>
<h2>Cleaning</h2>
<div class="menuDiv">
<button class="buttonClear" id="blackboardClear">
clear the board</button>
<button class="buttonClear" id="clearMagnet">
Remove all the magnets</button>
</div>
<h2>Add a background</h2>
<button id="buttonNoBackground">
No background</button>
<button class="buttonMusicScore" id="buttonMusicScore">
Music score</button>
<h2>Load</h2>
<div class="menuDiv">
<input id="loadfileinput" accept=".tableaunoir" type="file"
title="Cliquer ici pour charger un tableau sauvegardée" onchange="LoadSave.loadFile((this.files)[0]);">
or drag and drop your <em>.tableaunoir file</em> in the application.
</div>
<h2>Save</h2>
<div class="menuDiv">
Name: <input id="name" value="myblackboard"></input><button id="save" onclick="LoadSave.save();Menu.hide();">Save</button>
</div>
</div>
<div id="Options" class="tabcontent">
<b>Xcas</b>
Angles:
<button id="angle_radian_yes" onclick="UI.radian(1);">Rad</button>
<button id="angle_radian_no" onclick="UI.radian(0);">Deg</button>
<br>
<button id="blackBoardSwitch" hidden>Switch to
blackboard</button>
<button id="whiteBoardSwitch">Switch to
whiteboard</button>
<button id="controlsToggle" onclick="controls.hidden = !controls.hidden; Menu.hide()">
Show/hide toolbar</button>
</div>
<div id="KeyboardShortcuts" class="tabcontent">
<h2>Blackboard keyboard shortcuts</h2>
<div class="menuDiv">
<table>
<tr>
<td><span class="keyboardkey">Esc.</span> or <span class="keyboardkey">F1</span></td>
<td>show/hide this <em>menu</em></td>
</tr>
<td><span class="keyboardkey">h</span></td>
<td>hide <em>toolbar</em></td>
</tr>
<tr>
<td><span class="keyboardkey">e</span></td>
<td>switch between chalk and <em>eraser</em></td>
</tr>
<tr>
<td><span class="keyboardkey">c</span></td>
<td>change the <em>color</em> of the chalk or of the selected magnet</td>
</tr>
<tr>
<td><span class="keyboardkey">d</span></td>
<td><em>divide</em> the screen</td>
</tr>
<tr>
<td><span class="keyboardkey">3</span></td>
<td><em>divide</em> the screen in three parts.</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl+Z</span></td>
<td><em>cancel</em> the last action</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl+Y</span> or <span class="keyboardkey">Ctrl+Shift+Z</span>
</td>
<td><em>redo</em> the last action</td>
</tr>
<tr>
<td><span class="keyboardkey">←</span> <span class="keyboardkey">→</span>
</td>
<td><em>move</em> in the board</td>
</tr>
</table>
<h2>Text Magnet keyboard shortcuts</h2>
<table>
<tr>
<td><span class="keyboardkey">k</span> or <span
class="keyboardkey">p</span> or <span class="keyboardkey">j</span></td>
<td>create a new magnet with a commandline to be eval-ed with
Giac/Xcas, MicroPython or Javascript
</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl + Enter</span></td>
<td>inside a magnet, evaluate magnet with Giac/Xcas, MicroPython
or Javascript</td>
</tr>
<tr>
<td><span class="keyboardkey">Esc.</span></td>
<td><em>exit</em> the text edition in a magnet</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl + +</span></td>
<td><em>increase</em> the size of the text</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl + -</span></td>
<td><em>decrease</em> the size of the text</td>
</tr>
</table>
<h2>Magnet keyboard shortcuts</h2>
<table>
<tr>
<td><span class="keyboardkey">Del</span></td>
<td><em>delete</em> the current magnet</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl+x</span></td>
<td><em>cut</em> the content inside the drawn contour into a magnet</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl+c</span></td>
<td><em>copy</em> the content inside the drawn contour into a magnet</td>
</tr>
<tr>
<td><span class="keyboardkey">m</span></td>
<td><em>cut</em> the content inside the drawn contour into a magnet / <em>flatten</em> the
current magnet to the
blackboard
</td>
</tr>
<tr>
<td><span class="keyboardkey">Ctrl+v</span></td>
<td><em>print</em> the current magnet (like rubber stamping)</td>
</tr>
</table>
</div>
</div>
<div id="Share" class="tabcontent">
<div class="warning" id="ShareGithub">
Warning: Share boards does not work since tableaunoir.github.io is
a showcase. You have to install tableaunoir on your own server, or you may try <a
href="http://tableaunoir.irisa.fr">http://tableaunoir.irisa.fr</a>
if it works!
</div>
<div class="warning">Warning: this functionnality is still under development and may not work perfectly.
In particular, magnets are not shared yet.
</div>
<div class="warning">Warning: The server will not save your board.
</div>
<div id="shareAndJoin">
<h2>Make a shared board</h2>
If you want some of your friends to see and modify your board, make a <em>shared</em> board.
<button id="shareButton">Make a shared board</button>
</br />
<div id="join">
<h2>Join an existing board</h2>
In order to <em>join</em> an existing shared board, type its URL:<br />
<input id="joinUrl" value=""></input>
<button id="joinButton">Join</button>
</div>
</div>
<div hidden id="shareInfo">
<h2>Share with others</h2>
In order to <em>share</em> the board with your friends, give them the following URL:<br />
<input id="shareUrl" value=""></input>
<div hidden id="shareMode">
<h2>Share mode</h2>
<button id="shareInTeacherMode"><img src="img/shareInTeacherMode.png" /><br />You write and the
other users only see</button>
<button id="shareInEverybodyWritesMode"><img
src="img/shareInEverybodyWritesMode.png" /><br />All users can write</button>
</div>
<h2>Connected Users</h2>
<div id="users"></div>
</div>
</div>
<div id="Magnets" class="tabcontent">
<h2>Text magnets</h2>
<button id="order_magnets" onclick="UI.reorder_magnets();Menu.hide();">Sort</button>,
execute
<button id="eval_all"
onclick="UI.exec_magnets(); Menu.hide(); Welcome.hide();">now</button>,
at load <button id="allow_exec_yes" onclick="UI.allow_exec=true;">Yes</button>
<button id="allow_exec_no"
onclick="UI.allow_exec=false;">No</button>
<br>
<button id="restore_trash"
onclick="UI.restore_trash();Menu.hide();">Restore</button> or
<button id="empty_trash" onclick="UI.empty_trash();Menu.hide();">empty</button>
the magnets trash.
<br>
The Magnet (or +) button will create a magnet of type
<button id="eval_xcas" onclick="UI.ckswitch('xcas',0);Welcome.hide();">Xcas
</button> (keyboard shortcut x),
<button id="eval_js"
onclick="UI.ckswitch('javascript',0);Welcome.hide();">Javascript </button> (j),
<button id="eval_mp"
onclick="UI.ckswitch('python',0);Welcome.hide();">Python</button> (p) or
<button id="eval_comment" onclick="UI.ckswitch('comment',0);"
style="font-weight:900">Text ($Math$</button> (l).
<br>
Type Esc to cancel edition
or type Ctrl-Enter to <em>evaluate</em> the magnet.<br>
Examples:
<ul>
<li>type <tt>k 1/3+2/7 Ctrl-Enter</tt> to get a computation,
<li>type <tt>l x/2 Ctrl-Enter</tt> to get the fraction x over
2.
<li> type <tt>k factor(x^4-1) Ctrl-Enter</tt>
to get x^4-1 factored.
<li> type <tt>k plot(sin(x)) Ctrl-Enter</tt> to get
the graph of sin(x)
<li> <tt>k circle(0,1) Ctrl-Enter</tt> to get a circle
</ul>
If you select a Javascript magnet, it will be eval-ed by <a target="_blank" href="https://bellard.org/quickjs/">QuickJS</a> in math mode, unless your commandline
starts with <tt>@</tt> (QuickJS without math mode) or <tt>@@</tt> (browser interpreter).
<h2>Quick magnet manipulations</h2>
<div class="menuDiv">
<button id="magnetsArrange">Arrange the magnets on the
board</button>
<button id="magnetsCreateGraph">Create graph from the
magnets</button>
</div>
<br />
<h2>Using existing images</h2>
<div class="menuDiv">
In order to <em>use existing images as magnets</em>, drag and drop .png/.svg/.gif/.jpg files.
</div>
<br />
<h2>Predefined Magnet collections</h2>
<div class="menuDiv">
<h3>Algorithms</h3>
<button class="magnetCollectionButton" id="magnetGS">Gale-Shapley algorithm</button>
<button class="magnetCollectionButton" id="magnetSorting">Sorting</button>
<button class="magnetCollectionButton" id="magnetBTrees">B trees</button>
<button class="magnetCollectionButton" id="magnetGraphNodes">Graph nodes</button>
<button class="magnetCollectionButton" id="magnetGraphSimCity">Simcity graph nodes</button>
<button class="magnetCollectionButton" id="magnetFloydsAlgorithm">Floyd's algorithm</button>
<!-- <button class="magnetCollectionButton" id="magnetUnionFind">Union-find</button> -->
<h3>Complexity theory</h3>
<button class="magnetCollectionButton" id="magnetTilings">Tilings</button>
</div>
</div>
<div id="Help" class="tabcontent">
<h2>How to create a magnet?</h2>
<img src="magnets/createmagnet.gif" />
<ul>
<li>Draw a contour around the picture</li>
<li>Then press <span class="keyboardkey">Ctrl+X</span></li>
</ul>
</div>
</div>
<div class="divMenuHide"><button onclick="Menu.hide()">X</button>Esc.</div>
</div>
<div id="error" hidden></div>
<div id="status">Downloading...</div>
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<div id="consolediv" style="display:none">
<button class="bouton" title="Effacer la console (Ctrl-N)" onclick="var field=$id('output');field.innerHTML='';$id('consolediv').style.display='none';">Efface</button>
<button class="bouton" title="Augmenter le nombre de lignes" onclick="var field=$id('output');var s=field.style.maxHeight; s=s.substr(0,s.length-2);s=eval(s)+20 ;s=s+'px';field.style.maxHeight =s ;">+</button>
<button class="bouton" title="Diminuer le nombre de lignes" onclick="var field=$id('output');var s=field.style.maxHeight; s=s.substr(0,s.length-2);s=Math.max(eval(s)-20,40) ;s=s+'px';field.style.maxHeight =s ;">-</button>
</div>
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