https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/weighted-sum-of-two-matrices/m-p/1175494#M28897 <P>How do I do this using Intel MKL?</P><P>res(:,:,:,i+j+k) = var(:,:,:,1)*op(1)+var(:,:,:,2)*op(2)</P><P>In this example, 'res' is a matrix with 4 dimensions, of which the last one is only two.</P><P>'op' is a vector two elements long.</P><P>I have found &nbsp;https://software.intel.com/en-us/mkl-developer-reference-c-mkl-sparse-mm which is good as there are two scalars which the matrices are multiplied by. However, there is A, B, and C in the documentation whereas I have only two matrices.</P><P>Also if you could please recommend some literature that introduces me to Intel MKL with problem sets to practice by myself, I would be happy to give it a go. I find Intel MKL confusing and now I get most of the answers by searching 'do something intel mkl' replacing 'do something' with what I need. Perhaps this is not very efficient...</P> Wed, 03 Jul 2019 00:33:59 GMT Sveta 2019-07-03T00:33:59Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/weighted-sum-of-two-matrices/m-p/1175494#M28897 <P>How do I do this using Intel MKL?</P><P>res(:,:,:,i+j+k) = var(:,:,:,1)*op(1)+var(:,:,:,2)*op(2)</P><P>In this example, 'res' is a matrix with 4 dimensions, of which the last one is only two.</P><P>'op' is a vector two elements long.</P><P>I have found &nbsp;https://software.intel.com/en-us/mkl-developer-reference-c-mkl-sparse-mm which is good as there are two scalars which the matrices are multiplied by. However, there is A, B, and C in the documentation whereas I have only two matrices.</P><P>Also if you could please recommend some literature that introduces me to Intel MKL with problem sets to practice by myself, I would be happy to give it a go. I find Intel MKL confusing and now I get most of the answers by searching 'do something intel mkl' replacing 'do something' with what I need. Perhaps this is not very efficient...</P> Wed, 03 Jul 2019 00:33:59 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/weighted-sum-of-two-matrices/m-p/1175494#M28897 Sveta 2019-07-03T00:33:59Z