Re: [Lapackpp-devel] Internal error in solve(A,X,B)

[Dee <de...@de...>]

Hi  Sivahari,

please see the manpage of zgesv for more info:

http://linux.die.net/man/l/zgesv

INFO (output) INTEGER
    = 0: successful exit
    < 0: if INFO = -i, the i-th argument had an illegal value
    > 0: if INFO = i, U(i,i) is exactly zero. The factorization has been
completed, but the factor U is exactly singular, so the solution could
not be computed.

I think your equation is not solvable.

Best regards
Dee


Am 25.03.2014 09:51, schrieb Sivahari Nandakumar:
> The following error shown while calling funtion solve() to solve a linear
> system of equations.
> 
> what():  LaLULinearSolveIP(LaGenMatDouble &A, &X, &B)Internal error in
> LAPACK: DGESV() Factor U was exactly singular
> 
> How to resolve it?
> 
> 
> 
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