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.\" Manual page created with latex2man on Tue Aug 28 01:19:13 PDT 2018
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.TH "ORPIE" "1" "28 August 2018" "a console\-based RPN calculator " "a console\-based RPN calculator "
.SH NAME

orpie \- is a console\-based RPN calculator with an interactive visual stack. 
.PP
.SH SYNOPSIS

orpie
.PP
.SH QUICK START

CAUTION: while this manpage should be suitable as a quick reference, it may 
be subject to miscellaneous shortcomings in typesetting. The definitive 
documentation is the user manual provided with Orpie in PDF format. 
.PP
This section describes how to use Orpie in its default configuration. After 
familiarizing yourself with the basic operations as outlined in this section, 
you may wish to consult 
the \fIorpierc\fP(5)
manpage 
to see how Orpie can be configured to better fit your needs. 
.PP
.SS OVERVIEW
The interface has two 
panels. The left panel combines status information with context\-sensitive help; 
the right panel represents the calculator\&'s stack. (Note that the left panel 
will be hidden if Orpie is run in a terminal with less than 80 columns.) 
.PP
In general, you perform calculations by first entering data on to the stack, 
then executing functions that operate on the stack data. As an example, you can 
hit 1<enter>2<enter>+ in order to add 1 and 2. 
.PP
.SS ENTERING REAL NUMBERS
To enter a real number, just type the desired digits and hit enter. The space 
bar will begin entry of a scientific notation exponent. The \&'n\&' key is used 
for negation. Here are some examples: 
.PP
.TS
tab(&);
l l.
T{
_
Keypresses 
T}&T{
Resulting Entry 
T}
T{
_
1.23<enter> 
T}&T{
1.23 
T}
T{
1.23<space>23n<enter> 
T}&T{
1.23e\-23 
T}
T{
1.23n<space>23<enter> 
T}&T{
\-1.23e23 
T}
T{
_
.TE
.PP
.SS ENTERING COMPLEX NUMBERS
Orpie can represent complex numbers using either cartesian (rectangular) or 
polar coordinates. See 
PERFORMING BASIC COMMAND OPERATIONS 
to see how to change the complex number display mode. 
.PP
A complex number is entered by first pressing \&'(\&', then entering the real 
part, then pressing \&',\&' followed by the imaginary part. Alternatively, you 
can press \&'(\&' followed by the magnitude, then \&'<\&' followed by the 
phase angle. The angle will be interpreted in degrees or radians, depending on 
the current setting of the angle mode 
(see PERFORMING BASIC COMMAND OPERATIONS). 
Examples: 
.PP
.TS
tab(&);
l l.
T{
_
Keypresses 
T}&T{
Resulting Entry 
T}
T{
_
(1.23, 4.56<enter> 
T}&T{
(1.23, 4.56) 
T}
T{
(0.7072<45<enter> 
T}&T{
(0.500065915655126, 0.50006591... 
T}
T{
(1.23n,4.56<space>10<enter> 
T}&T{
(\-1.23, 45600000000) 
T}
T{
_
.TE
.PP
.SS ENTERING MATRICES
You can enter matrices by pressing \&'[\&'\&. The elements of the matrix may then be 
entered as described in the previous sections, and should be separated using 
\&',\&'\&. To start a new row of the matrix, press \&'[\&' again. On the 
stack, each row of the matrix is enclosed in a set of brackets; for example, the 
matrix 
.PP
.TS
tab(&);
l l.
T{
1 
T}&T{
2 
T}
T{
3 
T}&T{
4 
.TE
.PP
would appear on the stack as [[1, 2][3, 4]]. 
.PP
Examples of matrix entry: 
.PP
.TS
tab(&);
l l.
T{
_
Keypresses 
T}&T{
Resulting Entry 
T}
T{
_
[1,2[3,4<enter> 
T}&T{
[[1, 2][3, 4]] 
T}
T{
[1.2<space>10,0[3n,5n<enter> 
T}&T{
[[ 12000000000, 0 ][ \-3, \-5 ]] 
T}
T{
[(1,2,3,4[5,6,7,8<enter> 
T}&T{
[[ (1, 2), (3, 4) ][ (5, 6), (... 
T}
T{
_
.TE
.PP
.SS ENTERING DATA WITH UNITS
Real and complex scalars and matrices can optionally be labeled with units. After typing 
in the numeric portion of the data, press \&'_\&' followed by a units string. The format 
of units strings is described in 
the UNITS FORMATTING section. 
.PP
Examples of entering dimensioned data: 
.PP
.TS
tab(&);
l l.
T{
_
Keypresses 
T}&T{
Resulting Entry 
T}
T{
_
1.234_N*mm^2/s<enter>
T}&T{
1.234_N*mm^2*s^\-1
T}
T{
(2.3,5_s^\-4<enter>
T}&T{
(2.3, 5)_s^\-4
T}
T{
[1,2[3,4_lbf*in<enter> 
T}&T{
[[ 1, 2 ][ 3, 4 ]]_lbf*in 
T}
T{
_nm<enter> 
T}&T{
1_nm 
T}
T{
_
.TE
.PP
.SS ENTERING EXACT INTEGERS
An exact integer may be entered by pressing \&'#\&' followed by the desired 
digits. The base of the integer will be assumed to be the same as the current 
calculator base mode (see 
PERFORMING BASIC COMMAND OPERATIONS 
to see how to set this mode). 
Alternatively, the desired base may be specified by pressing space and appending 
one of {b, o, d, h}, to represent binary, octal, decimal, or hexadecimal, 
respectively. On the stack, the representation of the integer will be changed 
to match the current base mode. Examples: 
.PP
.TS
tab(&);
l l.
T{
_
Keypresses 
T}&T{
Resulting Entry 
T}
T{
_
#123456<enter> 
T}&T{
#123456`d 
T}
T{
#ffff<space>h<enter> 
T}&T{
#65535`d 
T}
T{
#10101n<space>b<enter> 
T}&T{
#\-21`d 
T}
T{
_
.TE
.PP
Note that exact integers may have unlimited length, and the basic arithmetic 
operations (addition, subtraction, multiplication, division) will be performed 
using exact arithmetic when both arguments are integers. 
.PP
.SS ENTERING VARIABLE NAMES
A variable name may be entered by pressing \&'@\&' followed by the desired 
variable name string. The string may contain alphanumeric characters, dashes, and 
underscores. Example: 
.PP
.TS
tab(&);
l l.
T{
_
Keypresses 
T}&T{
Resulting Entry 
T}
T{
_
@myvar 
T}&T{
@ myvar
T}
T{
_
.TE
.PP
Orpie also supports autocompletion of variable names. The help panel displays a 
list of pre\-existing variables that partially match the name currently being entered. 
You can press \&'<tab>\&' to iterate through the list of matching variables. 
.PP
As a shortcut, keys <f1>\-<f4> will enter the variables (``registers\&'') 
@ r01 through @ r04. 
.PP
.SS ENTERING PHYSICAL CONSTANTS
Orpie includes definitions for a number of fundamental physical constants. To 
enter a constant, press \&'C\&', followed by the first few letters/digits 
of the constant\&'s symbol, then hit enter. Orpie offers an autocompletion 
feature for physical constants, so you only need to type enough of the constant 
to identify it uniquely. A list of matching constants will appear in the left 
panel of the display, to assist you in finding the desired choice. 
.PP
The following is a list of Orpie\&'s physical constant symbols: 
.PP
.TS
tab(&);
l l.
T{
_
Symbol 
T}&T{
Physical Constant 
T}
T{
_
NA 
T}&T{
Avagadro\&'s number 
T}
T{
k 
T}&T{
Boltzmann constant 
T}
T{
Vm 
T}&T{
molar volume 
T}
T{
R 
T}&T{
universal gas constant 
T}
T{
stdT 
T}&T{
standard temperature 
T}
T{
stdP 
T}&T{
standard pressure 
T}
T{
sigma 
T}&T{
Stefan\-Boltzmann constant 
T}
T{
c 
T}&T{
speed of light 
T}
T{
eps0 
T}&T{
permittivity of free space 
T}
T{
u0 
T}&T{
permeability of free space 
T}
T{
g 
T}&T{
acceleration of gravity 
T}
T{
G 
T}&T{
Newtonian gravitational constant 
T}
T{
h 
T}&T{
Planck\&'s constant 
T}
T{
hbar 
T}&T{
Dirac\&'s constant 
T}
T{
e 
T}&T{
electron charge 
T}
T{
me 
T}&T{
electron mass 
T}
T{
mp 
T}&T{
proton mass 
T}
T{
alpha 
T}&T{
fine structure constant 
T}
T{
phi 
T}&T{
magnetic flux quantum 
T}
T{
F 
T}&T{
Faraday\&'s constant 
T}
T{
Rinf 
T}&T{
``infinity\&'' Rydberg constant 
T}
T{
a0 
T}&T{
Bohr radius 
T}
T{
uB 
T}&T{
Bohr magneton 
T}
T{
uN 
T}&T{
nuclear magneton 
T}
T{
lam0 
T}&T{
wavelength of a 1eV photon 
T}
T{
f0 
T}&T{
frequency of a 1eV photon 
T}
T{
lamc 
T}&T{
Compton wavelength 
T}
T{
c3 
T}&T{
Wien\&'s constant 
T}
T{
_
.TE
.PP
All physical constants are defined in the Orpie run\-configuration file; consult 
the \fIorpierc\fP(5)
manpage 
if you wish to define your own constants or change the existing definitions. 
.PP
.SS ENTERING DATA WITH AN EXTERNAL EDITOR
Orpie can also parse input entered via an external editor. You may find this to be 
a convenient method for entering large matrices. Pressing \&'E\&' will 
launch the external editor, and the various data types may be entered as illustrated 
by the examples below: 
.PP
.TS
tab(&);
l l.
T{
_
Data Type 
T}&T{
Sample Input String 
T}
T{
_
exact integer 
T}&T{
#12345678`d, where the trailing 
letter is one of the base characters {b, o, d, h} 
T}
T{
real number 
T}&T{
\-123.45e67 
T}
T{
complex number 
T}&T{
(1e10, 2) or (1 <90) 
T}
T{
real matrix 
T}&T{
[[1, 2][3.1, 4.5e10]] 
T}
T{
complex matrix 
T}&T{
[[(1, 0), 5][1e10, (2 <90)]] 
T}
T{
variable 
T}&T{
@myvar 
T}
T{
_
.TE
.PP
Real and complex numbers and matrices may have units appended; just add a units 
string such as ``_N*m/s\&'' immediately following the numeric portion 
of the expression. 
.PP
Notice that the complex matrix input parser is quite flexible; real and complex 
matrix elements may be mixed, and cartesian and polar complex formats may be 
mixed as well. 
.PP
Multiple stack entries may be specified in the same file, if they are separated 
by whitespace. For example, entering (1, 2) 1.5 into the editor will cause 
the complex value (1, 2) to be placed on the stack, followed by the real 
value 1.5. 
.PP
The input parser will discard whitespace where possible, so feel free to add 
any form of whitespace between matrix rows, matrix elements, real and complex 
components, etc. 
.PP
.SS EXECUTING BASIC FUNCTION OPERATIONS
Once some data has been entered on the stack, you can apply operations to that 
data. For example, \&'+\&' will add the last two elements on the stack. By 
default, the following keys have been bound to such operations: 
.PP
.TS
tab(&);
l l.
T{
_
Keys 
T}&T{
Operations 
T}
T{
_
+ 
T}&T{
add last two stack elements 
T}
T{
\- 
T}&T{
subtract element 1 from element 2 
T}
T{
* 
T}&T{
multiply last two stack elements 
T}
T{
/ 
T}&T{
divide element 2 by element 1 
T}
T{
^T}&T{
raise element 2 to the power of element 1 
T}
T{
n 
T}&T{
negate last element 
T}
T{
i 
T}&T{
invert last element 
T}
T{
s 
T}&T{
square root function 
T}
T{
a 
T}&T{
absolute value function 
T}
T{
e 
T}&T{
exponential function 
T}
T{
l 
T}&T{
natural logarithm function 
T}
T{
c 
T}&T{
complex conjugate function 
T}
T{
! 
T}&T{
factorial function 
T}
T{
%T}&T{
element 2 mod element 1 
T}
T{
S 
T}&T{
store element 2 in (variable) element 1 
T}
T{
; 
T}&T{
evaluate variable to obtain contents 
T}
T{
_
.TE
.PP
As a shortcut, function operators will automatically enter any data that you 
were in the process of entering. So instead of the sequence 
2<enter>2<enter>+, you could type simply 2<enter>2+ and the second number 
would be entered before the addition operation is applied. 
.PP
As an additional shortcut, any variable names used as function arguments will 
be evaluated before application of the function. In other words, it is not necessary 
to evaluate variables before performing arithmetic operations on them. 
.PP
.SS EXECUTING FUNCTION ABBREVIATIONS
One could bind nearly all calculator operations to specific keypresses, but this 
would rapidly get confusing since the PC keyboard is not labeled as nicely as a 
calculator keyboard is. For this reason, Orpie includes an 
\fIabbreviation\fP
syntax. 
.PP
To activate an abbreviation, press \&''' (quote key), followed by the 
first few letters/digits of the abbreviation, then hit enter. Orpie offers an 
autocompletion feature for abbreviations, so you only need to type enough of 
the operation to identify it uniquely. The matching abbreviations will appear 
in the left panel of the display, to assist you in finding the appropriate 
operation. 
.PP
To avoid interface conflicts, abbreviations may be entered only when the 
entry buffer (the bottom line of the screen) is empty. 
.PP
The following functions are available as abbreviations: 
.PP
.TS
tab(&);
l l.
T{
_
Abbreviations 
T}&T{
Functions 
T}
T{
_
inv 
T}&T{
inverse function 
T}
T{
pow 
T}&T{
raise element 2 to the power of element 1 
T}
T{
sq 
T}&T{
square last element 
T}
T{
sqrt 
T}&T{
square root function 
T}
T{
abs 
T}&T{
absolute value function 
T}
T{
exp 
T}&T{
exponential function 
T}
T{
ln 
T}&T{
natural logarithm function 
T}
T{
10^
T}&T{
base 10 exponential function 
T}
T{
log10 
T}&T{
base 10 logarithm function 
T}
T{
conj 
T}&T{
complex conjugate function 
T}
T{
sin 
T}&T{
sine function 
T}
T{
cos 
T}&T{
cosine function 
T}
T{
tan 
T}&T{
tangent function 
T}
T{
sinh 
T}&T{
hyperbolic sine function 
T}
T{
cosh 
T}&T{
hyperbolic cosine function 
T}
T{
tanh 
T}&T{
hyperbolic tangent function 
T}
T{
asin 
T}&T{
arcsine function 
T}
T{
acos 
T}&T{
arccosine function 
T}
T{
atan 
T}&T{
arctangent function 
T}
T{
asinh 
T}&T{
inverse hyperbolic sine function 
T}
T{
acosh 
T}&T{
inverse hyperbolic cosine function 
T}
T{
atanh 
T}&T{
inverse hyperbolic tangent function 
T}
T{
re 
T}&T{
real part of complex number 
T}
T{
im 
T}&T{
imaginary part of complex number 
T}
T{
gamma 
T}&T{
Euler gamma function 
T}
T{
lngamma 
T}&T{
natural log of Euler gamma function 
T}
T{
erf 
T}&T{
error function 
T}
T{
erfc 
T}&T{
complementary error function 
T}
T{
fact 
T}&T{
factorial function 
T}
T{
gcd 
T}&T{
greatest common divisor function 
T}
T{
lcm 
T}&T{
least common multiple function 
T}
T{
binom 
T}&T{
binomial coefficient function 
T}
T{
perm 
T}&T{
permutation function 
T}
T{
trans 
T}&T{
matrix transpose 
T}
T{
trace 
T}&T{
trace of a matrix 
T}
T{
solvelin 
T}&T{
solve a linear system of the form Ax = b 
T}
T{
mod 
T}&T{
element 2 mod element 1 
T}
T{
floor 
T}&T{
floor function 
T}
T{
ceil 
T}&T{
ceiling function 
T}
T{
toint 
T}&T{
convert a real number to an integer type 
T}
T{
toreal 
T}&T{
convert an integer type to a real number 
T}
T{
add 
T}&T{
add last two elements 
T}
T{
sub 
T}&T{
subtract element 1 from element 2 
T}
T{
mult 
T}&T{
multiply last two elements 
T}
T{
div 
T}&T{
divide element 2 by element 1 
T}
T{
neg 
T}&T{
negate last element 
T}
T{
store 
T}&T{
store element 2 in (variable) element 1 
T}
T{
eval 
T}&T{
evaluate variable to obtain contents 
T}
T{
purge 
T}&T{
delete a variable 
T}
T{
total 
T}&T{
sum the columns of a real matrix 
T}
T{
mean 
T}&T{
compute the sample means of the columns of a real matrix 
T}
T{
sumsq 
T}&T{
sum the squares of the columns of a real matrix 
T}
T{
var 
T}&T{
compute the unbiased sample variances of the columns of a real matrix 
T}
T{
varbias 
T}&T{
compute the biased (population) sample variances of the columns of a real matrix 
T}
T{
stdev 
T}&T{
compute the unbiased sample standard deviations of the columns of a real matrix 
T}
T{
stdevbias 
T}&T{
compute the biased (pop.) sample standard deviations of the columns of a matrix 
T}
T{
min 
T}&T{
find the minima of the columns of a real matrix 
T}
T{
max 
T}&T{
find the maxima of the columns of a real matrix 
T}
T{
utpn 
T}&T{
compute the upper tail probability of a normal distribution 
T}
T{
uconvert 
T}&T{
convert element 2 to an equivalent expression with units matching element 1 
T}
T{
ustand 
T}&T{
convert to equivalent expression using SI standard base units 
T}
T{
uvalue 
T}&T{
drop the units of the last element 
T}
T{
_
.TE
.PP
Entering abbreviations can become tedious when performing repetitive calculations. 
To save some keystrokes, Orpie will automatically bind recently\-used operations with no prexisting 
binding to keys <f5>\-<f12>. The current autobindings can be viewed by pressing \&'h\&' 
to cycle between the various pages of the help panel. 
.PP
.SS EXECUTING BASIC COMMAND OPERATIONS
In addition to the function operations listed in 
the section EXECUTING BASIC FUNCTION OPERATIONS, 
a number of basic calculator commands have been bound to single keypresses: 
.PP
.TS
tab(&);
l l.
T{
_
Keys 
T}&T{
Operations 
T}
T{
_
\\T}&T{
drop last element 
T}
T{
| 
T}&T{
clear all stack elements 
T}
T{
<pagedown> 
T}&T{
swap last two elements 
T}
T{
<enter> 
T}&T{
duplicate last element (when entry buffer is empty) 
T}
T{
u 
T}&T{
undo last operation 
T}
T{
r 
T}&T{
toggle angle mode between degrees and radians 
T}
T{
p 
T}&T{
toggle complex display mode between rectangular and polar 
T}
T{
b 
T}&T{
cycle base display mode between binary, octal, decimal, hex 
T}
T{
h 
T}&T{
cycle through multiple help windows 
T}
T{
v 
T}&T{
view last stack element in a fullscreen editor 
T}
T{
E 
T}&T{
create a new stack element using an external editor 
T}
T{
P 
T}&T{
enter 3.14159265 on the stack 
T}
T{
C\-L 
T}&T{
refresh the display 
T}
T{
<up> 
T}&T{
begin stack browsing mode 
T}
T{
Q 
T}&T{
quit Orpie 
T}
T{
_
.TE
.PP
.SS EXECUTING COMMAND ABBREVIATIONS
In addition to the function operations listed in 
the section EXECUTING FUNCTION ABBREVIATIONS, 
there are a large number of calculator commands that 
have been implemented using the abbreviation syntax: 
.PP
.TS
tab(&);
l l.
T{
_
Abbreviations 
T}&T{
Calculator Operation 
T}
T{
_
drop 
T}&T{
drop last element 
T}
T{
clear 
T}&T{
clear all stack elements 
T}
T{
swap 
T}&T{
swap last two elements 
T}
T{
dup 
T}&T{
duplicate last element 
T}
T{
undo 
T}&T{
undo last operation 
T}
T{
rad 
T}&T{
set angle mode to radians 
T}
T{
deg 
T}&T{
set angle mode to degrees 
T}
T{
rect 
T}&T{
set complex display mode to rectangular 
T}
T{
polar 
T}&T{
set complex display mode to polar 
T}
T{
bin 
T}&T{
set base display mode to binary 
T}
T{
oct 
T}&T{
set base display mode to octal 
T}
T{
dec 
T}&T{
set base display mode to decimal 
T}
T{
hex 
T}&T{
set base display mode to hexidecimal 
T}
T{
view 
T}&T{
view last stack element in a fullscreen editor 
T}
T{
edit 
T}&T{
create a new stack element using an external editor 
T}
T{
pi 
T}&T{
enter 3.14159265 on the stack 
T}
T{
rand 
T}&T{
generate a random number between 0 and 1 (uniformly distributed) 
T}
T{
refresh 
T}&T{
refresh the display 
T}
T{
about 
T}&T{
display a nifty ``About Orpie\&'' screen 
T}
T{
quit 
T}&T{
quit Orpie 
T}
T{
_
.TE
.PP
.SS BROWSING THE STACK
Orpie offers a \fIstack browsing mode\fP
to assist in viewing and manipulating 
stack data. Press <up> to enter stack browsing mode; this should 
highlight the last stack element. You can use the up and down arrow keys to 
select different stack elements. The following keys are useful in stack 
browsing mode: 
.PP
.TS
tab(&);
l l.
T{
_
Keys 
T}&T{
Operations 
T}
T{
_
q 
T}&T{
quit stack browsing mode 
T}
T{
<left> 
T}&T{
scroll selected entry to the left 
T}
T{
<right> 
T}&T{
scroll selected entry to the right 
T}
T{
r 
T}&T{
cyclically ``roll\&'' stack elements downward, below the selected element (inclusive) 
T}
T{
R 
T}&T{
cyclically ``roll\&'' stack elements upward, below the selected element (inclusive) 
T}
T{
v 
T}&T{
view the currently selected element in a fullscreen editor 
T}
T{
E 
T}&T{
edit the currently selected element with an external editor 
T}
T{
<enter> 
T}&T{
duplicate the currently selected element 
T}
T{
_
.TE
.PP
The left and right scrolling option may prove useful for viewing very lengthy 
stack entries, such as large matrices. The edit option provides a convenient 
way to correct data after it has been entered on the stack. 
.PP
.SS UNITS FORMATTING
A units string is a list of units separated by \&'*\&' to indicate multiplication 
and \&'/\&' to indicate division. Units may be raised to real\-valued powers 
using the \&'^\&'character. A contrived example of a valid unit string would be 
"N*nm^2*kg/s/in^\-3*GHz^2.34".
.PP
Orpie supports the standard SI prefix set, 
{y, z, a, f, p, n, u, m, c, d, da, h, k, M, G, T, P, E, Z, Y} 
(note the use of \&'u\&' for micro\-). These prefixes may be applied 
to any of the following exhaustive sets of units: 
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Length Unit 
T}
T{
_
m 
T}&T{
meter 
T}
T{
ft 
T}&T{
foot 
T}
T{
in 
T}&T{
inch 
T}
T{
yd 
T}&T{
yard 
T}
T{
mi 
T}&T{
mile 
T}
T{
pc 
T}&T{
parsec 
T}
T{
AU 
T}&T{
astronomical unit 
T}
T{
Ang 
T}&T{
angstrom 
T}
T{
furlong 
T}&T{
furlong 
T}
T{
pt 
T}&T{
PostScript point 
T}
T{
pica 
T}&T{
PostScript pica 
T}
T{
nmi 
T}&T{
nautical mile 
T}
T{
lyr 
T}&T{
lightyear 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Mass Unit 
T}
T{
_
g 
T}&T{
gram 
T}
T{
lb 
T}&T{
pound mass 
T}
T{
oz 
T}&T{
ounce 
T}
T{
slug 
T}&T{
slug 
T}
T{
lbt 
T}&T{
Troy pound 
T}
T{
ton 
T}&T{
(USA) short ton 
T}
T{
tonl 
T}&T{
(UK) long ton 
T}
T{
tonm 
T}&T{
metric ton 
T}
T{
ct 
T}&T{
carat 
T}
T{
gr 
T}&T{
grain 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Time Unit 
T}
T{
_
s 
T}&T{
second 
T}
T{
min 
T}&T{
minute 
T}
T{
hr 
T}&T{
hour 
T}
T{
day 
T}&T{
day 
T}
T{
yr 
T}&T{
year 
T}
T{
Hz 
T}&T{
Hertz 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Temperature Unit 
T}
T{
_
K 
T}&T{
Kelvin 
T}
T{
R 
T}&T{
Rankine 
T}
T{
_
.TE
.PP
Note: No, Celsius and Fahrenheit will not be supported. Because these 
temperature units do not share a common zero point, their behavior is 
ill\-defined under many operations. 
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
``Amount of Substance\&'' Unit 
T}
T{
_
mol 
T}&T{
Mole 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Force Unit 
T}
T{
_
N 
T}&T{
Newton 
T}
T{
lbf 
T}&T{
pound force 
T}
T{
dyn 
T}&T{
dyne 
T}
T{
kip 
T}&T{
kip 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Energy Unit 
T}
T{
_
J 
T}&T{
Joule 
T}
T{
erg 
T}&T{
erg 
T}
T{
cal 
T}&T{
calorie 
T}
T{
BTU 
T}&T{
british thermal unit 
T}
T{
eV 
T}&T{
electron volt 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Electrical Unit 
T}
T{
_
A 
T}&T{
Ampere 
T}
T{
C 
T}&T{
Coulomb 
T}
T{
V 
T}&T{
volt 
T}
T{
Ohm 
T}&T{
Ohm 
T}
T{
F 
T}&T{
Farad 
T}
T{
H 
T}&T{
Henry 
T}
T{
T 
T}&T{
Tesla 
T}
T{
G 
T}&T{
Gauss 
T}
T{
Wb 
T}&T{
Weber 
T}
T{
Mx 
T}&T{
Maxwell 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Power Unit 
T}
T{
_
W 
T}&T{
Watt 
T}
T{
hp 
T}&T{
horsepower 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Pressure Unit 
T}
T{
_
Pa 
T}&T{
Pascal 
T}
T{
atm 
T}&T{
atmosphere 
T}
T{
bar 
T}&T{
bar 
T}
T{
Ohm 
T}&T{
Ohm 
T}
T{
mmHg 
T}&T{
millimeters of mercury 
T}
T{
inHg 
T}&T{
inches of mercury 
T}
T{
_
.TE
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Luminance Unit 
T}
T{
_
cd 
T}&T{
candela 
T}
T{
lm 
T}&T{
lumen 
T}
T{
lx 
T}&T{
lux 
T}
T{
_
.TE
.PP
Note: Although the lumen is defined by 
1_lm = 1_cd * sr, Orpie drops the steridian because it is 
a dimensionless unit and therefore is of questionable use to a calculator. 
.PP
.TS
tab(&);
l l.
T{
_
String 
T}&T{
Volume Unit 
T}
T{
_
ozfl 
T}&T{
fluid ounce (US) 
T}
T{
cup 
T}&T{
cup (US) 
T}
T{
pt 
T}&T{
pint (US) 
T}
T{
qt 
T}&T{
quart (US) 
T}
T{
gal 
T}&T{
gallon (US) 
T}
T{
L 
T}&T{
liter 
T}
T{
_
.TE
.PP
All units are defined in the Orpie run\-configuration file; consult 
the \fIorpierc\fP(5)
manpage 
if you wish to define your own units or change the existing definitions. 
.PP
.SH LICENSING

Orpie is Free Software; you can redistribute it and/or modify it under the 
terms of the GNU General Public License (GPL), Version 3, as published by the 
Free Software Foundation. You should have received a copy of the GPL along 
with this program, in the file ``LICENSE.md\&''\&. 
.PP
.SH CONTACT INFO

Orpie author: Paul Pelzl <pelzlpj@gmail.com> 
.br
Orpie website: \fBhttps://github.com/pelzlpj/orpie\fP
.br
.PP
.SH SEE ALSO

\fIorpierc\fP(5),
\fIorpie\-curses\-keys\fP(1)
.PP
.\" NOTE: This file is generated, DO NOT EDIT.