Hello, 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 diagonal+kl+ku? 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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