Ramón Casero Cañas on Thu, 23 Jan 2003 14:34:40 +0100 (MET)


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how to know whether a matrix is invertible 

I would like to know whether a matrix is invertible, I'm using ginv(), but
if it's not, the library issues an error message and exits. I considered
computing the determinant, but det() and det2() have the same problem. Is there a
way to check this in PARI without an error and exit?

Regards,

Ramón.

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