RMATH(1)RMATH(1)NAMErmath - a computer algebra system with functions and readline
matho - a computer algebra system with functions
SYNOPSISrmath [ input_files ]
matho [ input_files ]
DESCRIPTION
Mathomatic is a general-purpose computer algebra system (CAS) that can
symbolically solve, simplify, combine, and compare algebraic equations,
perform standard, complex number, modular, and polynomial arithmetic,
etc. It does some calculus and handles all elementary algebra, except
logarithms. Plotting expressions with gnuplot is also supported.
rmath and matho are shell scripts that allow you to use Mathomatic with
input of functions like sin(x) and sqrt(x) automatically expanded to
equivalent algebraic expressions by the m4 macro preprocessor. A
matching pair of parentheses is required around the parameters for all
functions in m4 Mathomatic; m4 requires this. rmath also runs the
rlwrap readline wrapper utility if available, to provide readline input
editing support similar to that provided by mathomatic(1).
rmath and matho define and enable named math functions in Mathomatic.
Most functions enabled here should be real number, complex number, and
symbolically capable. One exception is the abs(x) function, which
doesn't work with complex numbers, because it is defined in Mathomatic
as (((x)^2)^.5).
The following general functions are defined when using rmath or matho:
sqrt(x), cbrt(x), exp(x), pow(x,y), abs(x), sgn(x), factorial(x),
gamma(x), floor(x), ceil(x), int(x), and round(x).
The following standard trigonometric functions are defined: sin(x),
cos(x), tan(x), cot(x), sec(x), and csc(x). sinc(x) is the normalized
sinc function, defined as sin(pi*x)/(pi*x).
The following standard hyperbolic trigonometric functions are defined:
sinh(x), cosh(x), tanh(x), coth(x), sech(x), and csch(x).
The following universal constants are defined: pi, e, i (the imaginary
unit), euler (the Euler-Mascheroni constant), omega, and phi (the
golden ratio).
GENERAL
Text files may be specified on the shell command line that will be
automatically read in through the m4 preprocessor into Mathomatic.
After any files are read in, Mathomatic prompts for input from the con‐
sole.
Mathomatic is best run from within a terminal emulator. It uses con‐
sole line input and output for the user interface. First you type in
your mathematical equations in standard algebraic notation, then you
can solve them by typing in the variable name at the prompt, or perform
operations on them with simple English commands. Type "help" or "?"
for the help command, "help examples" to get started. If the command
name is longer than 4 letters, you only need to type in the first 4
letters. Most commands operate on the current equation by default.
Complete documentation is available in HTML and PDF formats; see the
local documentation directory or online at "http://math‐
omatic.org/math/doc/" for the latest Mathomatic documentation.
FILES
~/.mathomaticrc
Optional startup file containing Mathomatic set command options.
It should be a text file with one set option per line. Do not
include the word "set". For example, the line "no color" will
make Mathomatic default to non-color mode, which is useful if
you aren't using a standard ANSI terminal emulator.
AUTHOR
Mathomatic has been written by George Gesslein II (gesslein@math‐
omatic.org), with help from the Internet community.
REPORTING BUGS
Please report any bugs to the author or on the Launchpad website:
"https://launchpad.net/mathomatic".
SEE ALSOmathomatic(1), matho-primes(1), primorial(1), matho-mult(1), matho-
sum(1), matho-pascal(1), matho-sumsq(1)RMATH(1)
