Re: [ublas] lapack bindings: ppsv returns info=2

Subject: Re: [ublas] lapack bindings: ppsv returns info=2
From: George Slavov (gpslavov_at_[hidden])
Date: 2011-04-22 16:50:31

I'm not. The matrix is positive-definite, which should allow me to use 
ppsv, right? Octave can find the Cholesky decomposition of this matrix. 
One exists. I tried using the LAPACK routine for Cholesky, but it also 
errored out with info = 2.

George

On 4/22/2011 4:47 PM, Rutger ter Borg wrote:
> On 2011-04-22 19:04, George Slavov wrote:
>>
>> ublas::symmetric_matrix<double> m2(4,4);
>> ublas::vector<double> b2(4);
>>
>> Best regards,
>> George Slavov
>
>
> Perhaps you're looking for the LAPACK driver routine 'spsv'?
>
> Cheers,
>
> Rutger
>
>
>
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