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[Lapack] question about SGBTRF


I am a Phd student, I work with Lapack functions, for the moment I can not get 
the right solution by using this function "SGBTRF" for decomposition LU of a 
band Matrix A. I may made mistake on introducing the Matrix element. 

Please, how can I enter the Matrix element, since we have a zeros out of the 

Please I will appreciate your help,

thank you very much in advance.

and waiting to hear from you.

with all my respect

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