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D.3.2.16 pos_def

Procedure from library linalg.lib (see linalg_lib).

Usage:
pos_def(A); A = constant, symmetric square matrix

Return:
int:
1 if A is positive definit ,
0 if not,
-1 if unknown

Example:
 


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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.