Provided by: mathomatic_16.0.5-1_amd64 bug


       mathomatic - a computer algebra system


       mathomatic [ -abcdehqrtuvwx ] [ -s level:time ] [ -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  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.


       -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 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.

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

       -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 or editline input processing.  Readline, and the editline drop-in
              replacement library, allow line input editing 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 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.  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.  Bypasses loading startup
              (rc) file, turns off color mode and readline, 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  unbuffered.   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  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 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.


       Mathomatic  has  been  written  by George Gesslein II (, with help
       from 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),