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]
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- Aliases: None.
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- Description: RandomMatrix[ m, n, min, max, options ] returns a random matrix of
size m by n with entries between the values min and max.
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- 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.
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- Comments / Limitations: Functionality provided by new RandomInteger, RandomDouble,
etc, native Mathematica commands
4.14.2 CEEP
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- Aliases: None
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- 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.
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- Arguments: None
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- 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];