Content-type: text/html Manpage of cgtkcalc

cgtkcalc

Section: User Commands (1)
Updated: April 6, 2006
Index

NAME

cgtkcalc - simple complex number calculator for GTK+

SYNOPSIS

cgtkcalc [options]

DESCRIPTION

cgtkcalc is a simple scientific calculator for complex number calculation. The absolute value and the argument as well as the real part and the imaginary part of a complex number can be input. You can change the part to input by clicking the label corresponding to it. After a function or a calculation, the part to input is restored to the real part.

Binary operators obey the standard rules of precedence. Entering "1+i3", "+", "2", "*", "3", "nCr", "2" and "=" results in "7+i3". However, cgtkcalc does not handle the natural precedence for unary operators. For instance, you have to input "1", "-", "(", "5", "*", "2+i3", ")", "sin" and "=" to calculate "1-sin{5*(2+i3)}".

Degree is not a suitable unit of measurement for complex numbers. The "DRPI" button only changes the unit for expressing the argument. The real part, imaginary part and absolute value of a complex number are always in radians. Therefore, to calculate "sin(45 deg)", you have to put "45 deg" into the argument and click "arg z" and "sin".

When the PRIMARY selection is the string of a complex number such as "3 + i" or "23 ej 5PI", it can be pasted by the "Paste" button. "PI" or "deg" can be used only for the argument subsequent to "ej". When the string is a real number, current part will be pasted with it. "Cut" and "Copy" also deal with a complex number in the style of "a+bi". "ACP" does in the style of "a+bi = r ej arg". They omit "+bi" when the imaginary part is "0".

Command-line options may be useful. The option -w can be used for recording a calculation. There are several options for changing the appearance: -rc, -s, -f, etc.

OPTIONS

cgtkcalc accepts the following options:

-h, --help: Display some information.
-s, --shrunk, --simple: Set the shrunk mode on.
-i, --hide: Hide the absolute value and the argument.
-w, --record: Write every step of calculation to stdout.
-H, --Hand: Use a cursor which looks like a hand.
-p, --PIrad: Use PIrad as the unit for expressing the argument of a complex number.
-d, --deg: Use deg as the unit for expressing the argument of a complex number.
-D, --2pi: Set the domain of the argument to [0, 2PI).
-prec, --prec number: Specify the precision for the display of digits by number. number must be in {1,2,...,10,11}; 8-digit precision is used by default.
-rc, --rc rcfile: Specify the gtk+ rc file, e.g., ~/.gtkrc.
-f, --font [familyname] [big]: Specify a font-family name (`century', `fixed', `helvetica' or `times'); `fixed' by default. Specify big to use bigger size of font.
-fc-real colorname: Specify the foreground color named colorname for the real part and the imaginary part.
-fc-abs colorname: Specify the foreground color named colorname for the absolute value and the argument.
-fc-op colorname: Specify the foreground color named colorname for the operator and memorized-value labels.

KEYBOARD SHORTCUTS

+/- : M, S, Ctrl+'-'

EE : E
Move the input position to ...
real : R imag : I
abs : F arg : K
conj : C
z^w : ^
BackSpace : BackSpace
STO : Alt+S, Alt+Enter
RCL : Alt+R
M+ : Alt+'+'
M- : Alt+'-'
M* : Alt+'*'
M/ : Alt+'/'
M^ : Alt+'^'
conjM : Alt+C
CUT : Ctrl+X
COPY : Ctrl+C
PASTE : Ctrl+V
UNDO : Ctrl+Z, Ctrl+U
CE/C : Delete, Ctrl+BackSpace
All-Clear : Ctrl+Delete
QUIT : Alt+X, Ctrl+Q
HELP : Alt+A, Ctrl+H
FONT : Ctrl+F
DOMAIN : Ctrl+D
DRPI : Ctrl+A

AUTHOR

SAITOH Akira

COPYRIGHT

Copyright ©  1999, 2006 SAITOH Akira

This document can be freely redistributed under the terms of the 
GNU General Public License version 2.0.

This document was created by man2html, using the manual pages.
Time: 00:59:39 GMT, April 06, 2006