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D.4.17.25 Ker
Procedure from librarymodules.lib (see modules_lib).
- Usage:
- Ker(M); M a Matrix
- Return:
- Module, image of a Matrix N with image(N)=Ker(M)
LIB "modules.lib";
ring r;
matrix m[1][3]=x,y2,z3;
Matrix M=m;
M;
==> {1} {2} {3}
==> {0} x y2 z3
==>
Ker(M);
==> image | y2 z3 0 |
==> | -x 0 z3 |
==> | 0 -x -y2 |
==>
==>
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