|  |  D.4.16.7 Source Procedure from librarymodules.lib(see  modules_lib).
 
Example:Usage:
Source(M); M Matrix
Return:
FreeModule, source of the Matrix
 |  | LIB "modules.lib";
ring r;
matrix m[2][2]=x,y3,z,xz;
Matrix M=m;
M;
==> x,y3,
==> z,xz 
==> 
Source(M);
==>  2
==> r
==> free Module
==> 
 | 
 
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