https://community.intel.com/t5/Software-Archive/matrix-inversion/m-p/951092#M19563 Hi all <BR /> <BR />I am trying to divide one matrix by another. To do this I have to do a matrix inversion. Does anyone know if there is a specific command to do this directly as for the matmul command. <BR /> <BR />thanks in advance <BR /> <BR />eugenio Tue, 15 May 2001 16:07:14 GMT Intel_C_Intel 2001-05-15T16:07:14Z https://community.intel.com/t5/Software-Archive/matrix-inversion/m-p/951092#M19563 Hi all <BR /> <BR />I am trying to divide one matrix by another. To do this I have to do a matrix inversion. Does anyone know if there is a specific command to do this directly as for the matmul command. <BR /> <BR />thanks in advance <BR /> <BR />eugenio Tue, 15 May 2001 16:07:14 GMT https://community.intel.com/t5/Software-Archive/matrix-inversion/m-p/951092#M19563 Intel_C_Intel 2001-05-15T16:07:14Z https://community.intel.com/t5/Software-Archive/matrix-inversion/m-p/951093#M19564 You cannot divide, you must multiply your matrix by the inverse of the other matrix (or multiply the inverse by your matrix - note that the order you do it is important for matrices - IGYKT). <BR />ALso, not all matrices have inverses, so this area can be a can of worms if your matrix turns out to be the awkward type. There exist numerous methods for determining an inverse and whether one exists - you will have to find and link to a library which contains a suitable matrix-inversion routine, possibly one tailored to your specific type of matrix (e.g. symmetric, non-symmetric, block diagonal, real, complex, sparse, ill-conditioned, or any combination of these). Good luck. Tue, 15 May 2001 20:19:54 GMT https://community.intel.com/t5/Software-Archive/matrix-inversion/m-p/951093#M19564 isn-removed200637 2001-05-15T20:19:54Z