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fcontour2d Scilab Group Scilab Function fcontour2d
NAME
fcontour2d - level curves of a surface defined by a function on a 2D plot
CALLING SEQUENCE
fcontour2d(xr,yr,f,nz,[style,strf,leg,rect,nax])
fcontour2d(xr,yr,f,nz,<opt_args>)
PARAMETERS
xr,yr : two real row vectors of size n1 and n2.
f : is an external which defines the surface z=f(x,y). It is first
computed on the grid specified by xr,yr. Then, control is passed
to the routine contour2d.
nz : the level values or the number of levels.
- If nz is an integer, its value gives the number of level
curves equally spaced from zmin to zmax.
- If nz is a vector, nz(i) gives the value of the ith level
curve.
<opt_args> : This represents a sequence of statements key1=value1,
key2=value2,... where key1, key2,... can be one of the following:
style, leg, rect, nax, strf or axesflag and frameflag (see plot2d)
[style,strf,leg,rect,nax]
: see contour2d.
DESCRIPTION
Draws level curves of a surface z=f(x,y). The level curves are drawn on a
2D plot. The surface is given by the external function f. See contour2d.
Enter the command fcontour2d() to see a demo.
EXAMPLE
deff('z=surf(x,y)','z=x^4-y^4')
x=-3:0.1:3;
y=x;
fcontour2d(x,y,surf,10);
SEE ALSO
contour, contour2d, fcontour
AUTHOR
J.Ph.C.
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