https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Correct-signature-for-dgesv/m-p/919287#M12841 <P>What should be the correct signature for P/Invoking dgesv from VB.NET code ?&nbsp;</P> Sun, 07 Oct 2012 18:44:08 GMT MiB19801 2012-10-07T18:44:08Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Correct-signature-for-dgesv/m-p/919287#M12841 <P>What should be the correct signature for P/Invoking dgesv from VB.NET code ?&nbsp;</P> Sun, 07 Oct 2012 18:44:08 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Correct-signature-for-dgesv/m-p/919287#M12841 MiB19801 2012-10-07T18:44:08Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Correct-signature-for-dgesv/m-p/919288#M12842 Hello, I checked the following article: http://software.intel.com/en-us/articles/use-intel-mkl-from-microsoft-office-excel You may needs to the following steps: 1&gt;Build custom DLL by builder tools with "stdcall" calling convention. "The Step1: Build custom DLL by builder tools provided by Intel MKL" may provide some help, and the library needs to include C lapack interface 'LAPACKE_dgesv' 2&gt; the function could be called like the following the VB code: Declare Function LAPACKE_dgesv Lib ”mkl_custom.dll” ( ByVal matrix_order As Integer, ByVal n As Integer , ByVal nrhs As Integer, ByVal a As IntPtr, ByVal lad As Integer, ByVal ipiv As IntPtr, ByVal b As IntPtr, ByVal ldb As Integer) As Integer Thanks, Chao Fri, 19 Oct 2012 06:58:07 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Correct-signature-for-dgesv/m-p/919288#M12842 Chao_Y_Intel 2012-10-19T06:58:07Z