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 Documentation / Mathematica / Built-in Functions / New in Version 3.0 / System Interface  /

  • << name reads in a file, evaluating each expression in it, and returning the last one.
  • On systems with graphical interfaces, there will usually be graphical tools for reading in files.
  • If name is the name of a Mathematica context, ending with a ` context mark character, then Get will process this name to find the file to read.
  • If name is the name of a file, any .m extension must be included explicitly.
  • Get can read .mx files of Mathematica definitions written by DumpSave.
  • <<" name " is equivalent to << name. The double quotes can be omitted if the name is of the form specified in Section¬†A.2.7.
  • If a file with name file .mx is found to be a directory, Get will look for a file with a name like file .mx/$SystemID/ file .mx.
  • If the file found by << name is a directory, Mathematica will try to load the file init.m in that directory.
  • Syntax errors in Mathematica input files are reported in the standard form: filename : line : syntax error in expr. Get continues attempting to read a file even after a syntax error has been detected. However, if an error is detected, $Context and $ContextPath are reset to the values they had when Get was called.
  • During the execution of Get, the global variable $Input is set to the name of the file being read.
  • Get[" file ", " key "] reads a file which has been encoded using Encode[" source ", " file ", " key "].
  • See the Mathematica book: Section 1.11.1, Section 1.11.10, Section 2.6.10,¬†Section 2.11.1.
  • See also: Read, Install, RunThrough, Put, Splice, FileNames, ToFileName, ToExpression, NotebookGet.

    Further Examples

    After loading the package we show all the functions now defined.