File: chap3.txt

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  3 Global Variables
  
  
  3.1 Getting information about polymake output
  
  3.1-1 InfoPolymaking
  
  InfoPolymaking  info class
  
  If  set to at least 2, the output of polymake is shown. At level 1, warnings
  are shown. This is the default. And at level 0, the polymake package remains
  silent.
  
  3.1-2 POLYMAKE_LAST_FAIL_REASON
  
  POLYMAKE_LAST_FAIL_REASON  global variable
  
  Contains  a  string  that  explains  the last occurrence of fail as a return
  value of Polymake (2.5-1).
  
  
  3.2 Variables for system interaction
  
  The  variables  for  interaction  with  the system are contained in the file
  environment.gi.  Each  of these variables has a function to set it, see 1.2.
  If  POLYMAKE_COMMAND  or  POLYMAKE_DATA_DIR are set at startup, they are not
  overwritten.  So  if  you  don't  want  (or don't have the rights) to modify
  environment.gi, you can set the variables in your .gaprc file.
  
  3.2-1 POLYMAKE_COMMAND
  
  POLYMAKE_COMMAND  global variable
  
  This variable should contain the name of the polymake program in the form as
  returned      by      Filename      So      a      probable     value     is
  Filename(Directory("/usr/local/bin"),"polymake").
  
  3.2-2 POLYMAKE_DATA_DIR
  
  POLYMAKE_DATA_DIR  global variable
  
  In  this  directory the files for polymake will be created. By default, this
  generates a temporary directory using DirectoryTemporary