Mathomatic is entirely hand-written in optimized C. It does not permit extremely large expressions, which can take a lot of memory and time. Instead reliability, ease of use, and speed are its features.

All arithmetic is double precision floating point with 14 decimal digits accuracy.

-c

Toggle color mode. This mode outputs ANSI escape sequences to make each level of parentheses a different color, for easier reading.

-h

Enable HTML mode (also valid XHTML) and disable readline input. This makes Mathomatic output suitable for inclusion in a web page. The color mode flag affects this mode, allowing HTML color output. It is recommended that the web page have a black background in color mode.

-m number

Change the memory size of equation spaces. It is followed by a decimal floating point number which is a multiplier of the default equation size. Please don't set this higher than 10, unless you know what you are doing.

-q

Set quiet mode. Prompts are not displayed.

-r

Disable readline input processing.

-t

Set test mode. Used when testing and comparing output. Bypasses loading startup file, turns off color mode and readline, sets infinite screen width and height, etc.

-u

Guarantee standard output is unbuffered.

-v

Display version number and compile flags used and exit.

Documentation is available in HTML format, see the documentation directory or the web site "www.mathomatic.org".

EDITOR

This environment variable specifies the editor to use for the edit command.

~/.mathomaticrc

Optional startup file containing Mathomatic set options. It should be a text file with one set option per line. Do not include the word "set".