For Mathmap install in 32 bit gimp download this the dierctions below are included
To install the Mathmap filter follow these directions PRECISELY!
Or it will not work.
Right click the zip file named - MMInstall.zip included in the package.
Select extract files...
Select the YourUserDirectory/.gimp-2.8 OR YourUserDirectory/.gimp-2.6 folder.
The plug-ins , and mathmap folder inside the MMInstall.zip folder will install exactly where they need to
go in order for Mathmap to work correctly.
DOUBLE CHECK - IF ALL WENT WELL
You should find these files in the YourUserDirectory/gimp-2.6, or gimp-2.8 folder (where ever you installed it)/plug-ins folder
Inside the YourUserDirectory/gimp-2.6, or gimp-2.8 folder (where ever you installed it), should be a NEW folder named mathmap.
Thats it.That is all there is to it.
You will find the new Mathmap toy under Filters > Generic > Mathmap