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D.3.2.13 gauss_nf

Procedure from library linalg.lib (see linalg_lib).

Usage:
gauss_nf(A); A any constant matrix

Return:
matrix; gauss normal form of A (uses gaussred)

Example:
 
LIB "linalg.lib";
ring r = 0,(x),dp;
matrix A[4][4] = 1,4,4,7,2,5,5,4,4,1,1,3,0,2,2,7;
print(gauss_nf(A));
==> 1,4, 4, 7,  
==> 0,-3,-3,-10,
==> 0,0, 0, 25, 
==> 0,0, 0, 0

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