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MATHOMATIC(1)		    General Commands Manual		 MATHOMATIC(1)

NAME
       mathomatic - a computer algebra system

SYNOPSIS
       mathomatic  [  -abcdehqrtuvwx  ]	 [ -s level:time ] [ -m	number ] [ in-
       put_files or input ]

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.  Trigonometry and function expansion	 are  supported	 in  a
       separate	program	called rmath(1).  Plotting expressions with gnuplot is
       also supported.

       mathomatic is the main Mathomatic  application  that  does  interactive
       symbolic-numeric	 mathematics  through a	simple command-line interface.
       Readline	or editline support is usually compiled	into this application,
       making  it easy to edit input and recall	previous input with the	cursor
       keys.  The numeric arithmetic is	double precision floating  point  with
       about  14 decimal digits	accuracy.  Many	results	will be	exact, because
       symbolic	math is	an exact math, and  because  multiple  floating	 point
       numbers	can  be	combined for a single mathematical value; for example:
       2^(1/3),	which is the cube root of 2 exactly.

OPTIONS
       -a     Enable alternative colors.  Ansi color mode will be  enabled  in
	      MS-Windows, if this option is specified and color	mode is	on.

       -b     Enable  bold  colors.   Color  mode will be turned on and	colors
	      will be brighter if this option is specified.  Same as the  "set
	      bold color" command.

       -c     Toggle  color  mode.  This mode outputs ANSI terminal escape se-
	      quences to make each level of parentheses	a different color, for
	      easier reading.  Requires	a terminal emulator that supports ANSI
	      color escape sequences.  If the colors are too hard to see,  use
	      the -b option to increase	the color brightness.

       -d     Set  demo	 mode.	 Currently this	mode only bypasses loading the
	      startup (rc) file, and ignores the pause command.	 It  also  al-
	      lows  using the calculate	command	without	prompting for the val-
	      ues of any of the	variables.

       -e     Process mathematical expressions and Mathomatic commands instead
	      of  input	 files	on the shell command line, and then quit.  Un-
	      quoted space characters are the line  separators	on  the	 Math-
	      omatic  input that follows this option.  Works similar to	enter-
	      ing it into the Mathomatic main prompt,  except  the  autoselect
	      option  is  turned  off.	Useful for quick command-line calcula-
	      tions.  The startup messages are not displayed with this option.
	      Follow  this option with "--" so that expressions	can start with
	      a	minus sign (-).

       -h     Display a	brief help message listing all of  these  options  and
	      then exit.

       -m number
	      Change  the memory size of equation spaces.  It is followed by a
	      decimal, floating	point number which is a	multiplier of the  de-
	      fault  equation  space size.  This allows	larger equation	spaces
	      so that manipulating extremely large  expressions	 will  succeed
	      without  getting the "Expression too large" error.  Specifying a
	      number higher than 100 may make Mathomatic unresponsive.

       -q     Set quiet	mode.  The startup messages and	prompts	are  not  dis-
	      played.	This  is  useful when piping or	redirecting input into
	      Mathomatic, because the input won't be displayed,	so prompt out-
	      put  should  be  turned off.  This option	does the same thing as
	      the "set no prompt" command.

       -r     Disable readline or editline input  processing.	Readline,  and
	      the editline drop-in replacement library,	allow line input edit-
	      ing using	the cursor keys, and output  terminal  control	codes,
	      all of which can be turned off with this option.

       -s level:time
	      Set  the	enforced security level	for the	user's Mathomatic ses-
	      sion.  Level 0 is	the default with no security.  Level 1	disal-
	      lows shelling out	(forking).  Level 2 disallows shelling out and
	      writing files.  Level 3 disallows	shelling out and reading/writ-
	      ing  files.   Level  4  is the highest security level and	is the
	      same as compiling	with the -DSECURE option.  This	 run-time  op-
	      tion  was	 created for use on open public	servers.  Specifying a
	      colon, then a time in seconds, will time limit  the  application
	      for that session.

       -t     Set  test	 mode.	 Used  when testing and	comparing output.  By-
	      passes loading startup (rc) file,	turns off color	mode and read-
	      line, sets wide output mode, ignores the pause command, etc.  It
	      also allows using	the calculate command  without	prompting  for
	      the values of any	of the variables.

       -u     Guarantee	that standard output and standard error	output are un-
	      buffered.	 Also echoes all line input if not in quiet mode (  -q
	      option ).	 Useful	when piping.

       -v     Display program name and version number, then exit successfully.

       -w     Set  wide	 output	mode for an unlimited width output device like
	      the "set wide" command does.  Sets infinite screen  columns  and
	      rows  so that 2D (two-dimensional) expression output will	always
	      succeed and not be downgraded to 1D output when it  doesn't  fit
	      in the display area.  Use	when redirecting output	or with	a ter-
	      minal emulator that doesn't wrap lines.  This mode only  affects
	      2D output.

       -x     Enable HTML output mode (which is	also valid XHTML).  This makes
	      Mathomatic output	suitable for inclusion in a web	 page.	 Color
	      and  bold	 mode  affect  this  mode, allowing HTML color output.
	      Wide output mode is also set by this option, meaning expressions
	      will always be displayed in 2D.

GENERAL
       After  any  options,  text  files may be	specified on the shell command
       line that will be automatically read in with the	read  command,	unless
       the -e option is	specified.

       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.

       A command preceded by an	exclamation point (such	as "!ls") is taken  to
       be a shell command and is passed	unchanged to the shell (/bin/sh).  "!"
       by itself invokes the default shell, which is specified	in  the	 SHELL
       environment variable.  "!" is also the factorial	operator.

       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.

ENVIRONMENT
       EDITOR The  EDITOR  environment variable	specifies which	text editor to
	      use for the edit command.

FILES
       ~/.mathomaticrc
	      Optional startup file containing Mathomatic set command options.
	      It  should be a text file	with one or more set options per line.
	      For example, the line "no	color" will make Mathomatic default to
	      non-color	 mode, which is	useful if you aren't using a supported
	      color device.

AUTHOR
       Mathomatic has been  written  by	 George	 Gesslein  II  (gesslein@math-
       omatic.org), with help from the Internet	community.

REPORTING BUGS
       The  command to take the	limit of an expression is partially functional
       and experimental.  All else should work perfectly; if not,  please  re-
       port  it	 as  a	bug  to	 the  author  or  on  the  Launchpad  website:
       "https://launchpad.net/mathomatic".

SEE ALSO
       rmath(1), matho-primes(1), primorial(1),	 matho-mult(1),	 matho-sum(1),
       matho-pascal(1),	matho-sumsq(1)

								 MATHOMATIC(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | GENERAL | ENVIRONMENT | FILES | AUTHOR | REPORTING BUGS | SEE ALSO

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