4.14 Deprecated Commands

The following commands are no longer supported in this version of NCAlgebra.

4.14.1 RandomMatrix[m,n,min,max,options]

Aliases: None.
Description: RandomMatrix[ m, n, min, max, options ] returns a random matrix of size m by n with entries between the values min and max.
Arguments: m and n are the number of rows and columns of the matrix. min and max are the minimum and maximum values of the entries in the matrix. The options are MatrixType and EntryType. The option MatrixType has values Any, Diagonal, or Symmetric. The default is MatrixType Any which returns an ordinary unrestricted matrix. MatrixType Diagonal returns random diagonal matrices. MatrixType Symmetric returns random symmetric matrices. The option EntryType has values Integer or Real. The default is EntryType Real which produces real floating point numbers as entries for the random matrix. EntryType Integer produces integers as entries.
Comments / Limitations: Functionality provided by new RandomInteger, RandomDouble, etc, native Mathematica commands

4.14.2 CEEP

Aliases: None
Description: The “CEEP” file tells Mathematica that you want to record the functions you use during the session for later use or examination. It prompts you for a file name. Say you respond MYSESSION. CEEP records your session – two different ways into two different files – the first file (e.g. MYSESSION.m and MYSESSION.ex) records the In[] and Out[] lines of code you see on the screen and the second file (which contains the suffix .ex – MYSESSION.ex in the above example) saves just the commands which you type.

Functions stored in these files can be brought into a Mathematica session at a later time by typing MYSESSION.ex and it executes. This file can also be modified in a text editor external to the Mathematica program. The “NCAlgebra.m” file contains the instructions to load NCAlgebra “packages” which allow the manipulation of noncommutative expressions.

Also, when using UNIX via a UNIX shell (rather than a Mathematica notebook), UNIX has a ’script’ utility which can be used. Type ’man script’ to find out more.
Arguments: None
Comments / Limitations: Fails inside a Notebook. You can essentially achieve the same functionality by using file=OpenAppend[”filename”]; AppendTo[$Echo, file]; If TEXformating is desired use file=OpenAppend[”filename”, FormatType - > NCTeXForm];