Provided by: mathomatic_15.7.1-1_amd64 bug


       mathomatic - a computer algebra system


       mathomatic [ -bcehqrtuvwx ] [ -s level ] [ -m number ] [ input_files or input ]


       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 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.


       -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 color brightness.

       -e     Process  mathematical expressions and Mathomatic commands instead of input files on
              the shell command line, and then quit.  Unquoted  space  characters  are  the  line
              separators  on  the  Mathomatic  input  that follows this option.  Works similar to
              entering it into the Mathomatic main prompt, except the autoselect option is turned
              off.   Useful  for  quick  command-line calculations.  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 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  messages  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 line input  editing  using  the
              cursor  keys,  and  outputs  terminal control codes, all of 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 (forking).  Level 2 disallows
              shelling out and writing files.  Level 3 disallows shelling out and reading/writing
              files.  Level 4 is the highest security level and is the same as compiling with the
              -DSECURE option.  This run-time option was created for use on open public servers.

       -t     Set test mode.  Used when testing and comparing output.  Bypasses  loading  startup
              (rc)  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.   Also
              echoes all line input if not in quiet mode ( -q option ).  Useful when piping.

       -v     Display  version  number,  compilation options used, expression array size, maximum
              possible memory usage, and security level, 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.   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.


       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 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.

       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  ""  for  the  latest  Mathomatic


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


              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.


       Mathomatic has been written by George Gesslein II ( with kind help from
       John Blommers ("") and the Internet community.


       The  command  to take the limit of an expression is partially functional and experimental.
       All else should work perfectly; if not, please report it as a bug to the author or on  the
       Launchpad website: "".


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