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       mathomatic - a computer algebra system
       rmath - a computer algebra system with functions


       mathomatic [ -bchqrtuvwx ] [ -s level ] [ -m number ] [ input_files ]
       rmath [ input_files ]


       Mathomatic  is a portable Computer Algebra System (CAS) that can solve,
       simplify, combine, and compare  algebraic  equations,  perform  general
       complex  number  and polynomial arithmetic, etc.  It does some calculus
       and  handles  all  elementary  algebra,  except  logarithms.   Plotting
       expressions with gnuplot is also supported.

       mathomatic  is  the  main  Mathomatic application that does interactive
       symbolic-numeric  mathematics  through  a   console   interface.    The
       numerical  arithmetic  is double precision floating point with up to 14
       decimal digits accuracy.  Many results will be exact, because  multiple
       combined  floating  point numbers can be used for a single mathematical
       value; for example: 2^(1/3), which is the cubed root of 2 exactly.

       rmath allows you to use Mathomatic with input of functions like  sin(x)
       and  sqrt(x) automatically expanded to equivalent algebraic expressions
       by the m4 macro processor.


       -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
              sequences  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 brightness.

       -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
              default 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  message  and  prompts  are  not
              displayed.  This is useful when piping or redirecting input into
              Mathomatic, because the input  won’t  be  displayed,  so  prompt
              output should be turned off.  This option does the same thing as
              the "set no prompt" command.

       -r     Disable readline input processing.  Readline  allows  using  the
              cursor  keys  and  outputs  terminal  control codes which can be
              turned off with this option.

       -s level
              Set the enforced security  level  for  the  Mathomatic  session.
              Level  0  is  the  default  with no security.  Level 1 disallows
              shelling out.  Level 2 disallows shelling out and writing files.
              Level  3  disallows  shelling  out and reading/writing files for
              complete security.  This run-time option was created for use  on
              open  public  servers  that  can’t  use  the SECURE compile-time

       -t     Set  test  mode.   Used  when  testing  and  comparing   output.
              Bypasses   loading  startup  file,  turns  off  color  mode  and
              readline, sets wide output mode, ignores pause command, etc.

       -u     Guarantee that standard output and  standard  error  output  are
              unbuffered.  Useful when piping.

       -v     Display   version  number,  compilation  options  used,  maximum
              possible memory usage, then exit.

       -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
              terminal  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.  The
              color mode and bold colors flags affect this mode, allowing HTML
              color  output.   Wide  output  mode  is also set by this option,
              meaning expressions will always be displayed in 2D.


       After any options, text files may be specified  on  the  shell  command
       line that will be automatically read in with the read command.

       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 infix 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.  If the command 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  format; see the local
       documentation directory or online at  ""
       for the latest Mathomatic documentation.


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


              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 are not using a standard terminal emulator.


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


       The  command to take the limit of an expression is partially functional
       and experimental.  All else should work perfectly; if not, report it as
       a  bug  on  the  Launchpad  website: "".
       Please include version information,  which  you  can  find  by  running
       mathomatic -v or by entering the version command.


       Mathomatic  has been written by George Gesslein II (
       with help from John Blommers (  It is free  software,
       available  under  the  terms  and  conditions of the GNU Lesser General
       Public License from "".