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D.3.2.11 gaussred
Procedure from library linalg.lib (see linalg_lib).
- Usage:
- gaussred(A); A any constant matrix
- Return:
- list Z: Z[1]=P , Z[2]=U , Z[3]=S , Z[4]=rank(A)
gives a row reduced matrix S, a permutation matrix P and a
normalized lower triangular matrix U, with P*A=U*S
- Note:
- This procedure is designed for teaching purposes mainly.
The straight forward implementation in the interpreted library
is not very efficient (no standard basis computation).
Example:
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