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MAXIMA CAS in MATLAB

version 1.0 (1.97 KB) by

Utilize MAXIMA CAS in MATLAB as a symbolic toolbox.

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%MAXIMA enables the use of the MAXIMA CAS in MATLAB
% This function uses the Jacomax (Java Connector for Maxima) to start and
% connect to a session of MAXIMA. The user passes the MAXIMA command in as
% a string and the result is returned as a string that can be used in
% conjunction with the vectorize and inline command to construct a function
% that can be evaluated and plotted in MATLAB.
%
% Required Additional Software:
% 1. Maxima, which is found at:
% http://sourceforge.net/projects/maxima/files/?source=navbar
%
% 2. Jacomax (Java Connector for Maxima) a basic Java interface for the
% Maxima computer algebra system can be found at:
% http://sourceforge.net/projects/jacomax/files/
%
% The contents of their package must be in java class path
% javaaddpath('jacomax-0.2.3.jar')
% javaaddpath('slf4j-api-1.5.11.jar')
% javaaddpath('jacomax-samples-0.2.3.jar')
%
% Additionally, you must modify their jacomax.properties.sample file to
% point to your installation of MAXIMA and change the file name to be
% jacomax.properties
%
% Examples:
% result = maxima('expand((x+2)*(x+3))')
% result = maxima('factor(x^2+5*x+6)')
% result = maxima('integrate(x^2+5*x+6,x)')
% result = maxima('diff(x^2+5*x+6,x)')

Comments and Ratings (4)

Jonathan Lister

Tested only with Windows 7

does not work in Ubuntu 14.04

error: [java] uk.ac.ed.ph.jacomax.JacomaxConfigurationException: Could not load properties file/resource jacomax.properties using search path [CURRENT_DIRECTORY, USER_HOME_DIRECTORY, CLASSPATH]

Jonathan Lister

to compute the definite integral:

result = eval(maxima('integrate(x^2+5*x+6,x,0,4)'))

result =
   85.3333

Jonathan Lister

try this:

 result = maxima('expand((x+2)*(x+3))');
 f = vectorize(inline(result));
 plot(f(1:.1:5))

MATLAB Release
MATLAB 8.0 (R2012b)
Acknowledgements

Inspired by: SymPy CAS in MATLAB

Inspired: SymPy CAS in MATLAB

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