NAME¶
rmath - a computer algebra system with functions and readline
matho - a computer algebra system with functions
SYNOPSIS¶
rmath [ 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), 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 named binary operators are defined:
mod for modulus. This
operator is the same as the % operator.
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 console.
Mathomatic is best run from within a terminal emulator. It uses console 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://mathomatic.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@mathomatic.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 ALSO¶
mathomatic(1),
matho-primes(1),
primorial(1),
matho-mult(1),
matho-sum(1),
matho-pascal(1),
matho-sumsq(1)