This IRIS Explorer module runs a Mathematica session in communication with other Explorer modules. The module can be built under Explorer 2.0 (or later versions) and requires MathLink 2.2 libraries to link. A valid Mathematica license is necessary to execute the module. More documentation about the module is available in the Mathematica.doc file in the Mathematica directory. Send questions or comments to the Usenet newsgroup comp.graphics.explorer. The three directories Mathematica, MathematicaMods, and MathematicaMaps contain code and examples for an Explorer module that runs a Mathematica session in communication with other Explorer modules. The source code exists in the directory Mathematica, while the MathematicaMods and MathematicaMaps directories contain sample modules and sample maps to display various uses of the module. Make sure to build and install the Mathematica module and all of the modules that refer to it. This will ensure that Explorer can find all the necessary program files. The steps to take are as follows: setenv EXPLORERUSERHOME cd Mathematica cxmkmf make install cd ../MathematicaMods cxmkmf make install Also, you may need to augment your .explorerrc file as follows: cat >> ~/.explorerrc modulepath -append ${EXPLORERUSERHOME}/modules These steps will put all the Mathematica program files and module resources in the ${EXPLORERUSERHOME}/modules directory, where Explorer's module Librarian can find them at run time.