FOFX(1) FOFX(1)
30 July 1997
NAME
fofx - print function 'graphs' on the standard output
SYNOPSIS
fofx [-axes] [-cols columns] [-tlx N] [-tlx N] [-brx N] [-bry N] [-iv
interval] equation
DESCRIPTION
fofx parses equation and prints a graph made of text characters on the
standard output. 'x' is the variable. Implied multiplication is not
allowed: you must use the * operator.
OPTIONS
-axes
Print crude f(x) and x axes.
-cols columns
Sets the width of the graph to columns columns. The default is
70.
-tlx N
Sets the abscissa of the point representing the top left corner
of the viewing window to N. Default is -7.
-tly N
Sets the ordinate of the point representing the top left corner
of the viewing window to N. Default is 7.
-brx N
Sets the abscissa of the point representing the bottom right
corner of the viewing window to N. Default is 7.
-bry N
Sets the ordinate of the point representing the bottom right
corner of the viewing window to N. Default is -7.
-iv interval
Sets the interval betwwn plotted points.
-?, --help
Print help message on the standard output and exit.
-v, --version
Print version information on the standard output and exit.
EXAMPLE
An example command line for fofx:
fofx -iv .228 "sin(3*x)*((x^2)*.1)"
- 1 - Formatted: November 14, 2025
FOFX(1) FOFX(1)
30 July 1997
VERSION
At this date, fofx is beta software at version 0.5.
HISTORY
fofx was first written in HPL on an HP-9825A desktop calculator. It
printed output on 16-column thermal paper tape.
AUTHORS
fofx is written by Tom Stepleton. Please send any feedback to
(ssteplet@artsci.wustl.edu, tom@tjs.org).
BUGS
Beware! There are probably hundreds!
MISC
fofx can be used on the Web through the form at
http://galena.tjs.org/cgi-bin/grapher
- 2 - Formatted: November 14, 2025
