https://community.intel.com/t5/Intel-Integrated-Performance/Problem-with-eigen-vectors-matrix-help/m-p/895500#M12005 <P>I am using ippmEigenValuesVectorsSym_m_32f in order to calculate Evals and Evecs of matrix B</P> <P>matrix B is the result of A*A' and it is symetric ..</P> <P></P> <P>now the problem:</P> <P>When comparing to MATLAB results:</P> <P>Matrix B is equale in both programs (matlab and c code)</P> <P>the eigen vectors are NOT equale, how come ???</P> <P></P> <P>also tried to use <IMG src="file:/C:/DOCUME~1/B779~1/LOCALS~1/Temp/moz-screenshot.jpg" alt="" />ippmEigenValuesVectors_m_32f .. but no good.</P> <P></P> <P>and one more thing:</P> <P>does ipp provides a solution for the general eigen problem ?</P> <P>meaning :</P> <P>input : matrix A, matrix B</P> <P>A*V = B*V*D</P> <P>output:</P> <P>eigen vecs V</P> <P>eigen vals D (diagonal matrix)</P> <P></P> <P>thanks,</P> <P></P> Tue, 25 Nov 2008 17:04:07 GMT liorwavebreak_tv 2008-11-25T17:04:07Z https://community.intel.com/t5/Intel-Integrated-Performance/Problem-with-eigen-vectors-matrix-help/m-p/895500#M12005 <P>I am using ippmEigenValuesVectorsSym_m_32f in order to calculate Evals and Evecs of matrix B</P> <P>matrix B is the result of A*A' and it is symetric ..</P> <P></P> <P>now the problem:</P> <P>When comparing to MATLAB results:</P> <P>Matrix B is equale in both programs (matlab and c code)</P> <P>the eigen vectors are NOT equale, how come ???</P> <P></P> <P>also tried to use <IMG src="file:/C:/DOCUME~1/B779~1/LOCALS~1/Temp/moz-screenshot.jpg" alt="" />ippmEigenValuesVectors_m_32f .. but no good.</P> <P></P> <P>and one more thing:</P> <P>does ipp provides a solution for the general eigen problem ?</P> <P>meaning :</P> <P>input : matrix A, matrix B</P> <P>A*V = B*V*D</P> <P>output:</P> <P>eigen vecs V</P> <P>eigen vals D (diagonal matrix)</P> <P></P> <P>thanks,</P> <P></P> Tue, 25 Nov 2008 17:04:07 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Problem-with-eigen-vectors-matrix-help/m-p/895500#M12005 liorwavebreak_tv 2008-11-25T17:04:07Z https://community.intel.com/t5/Intel-Integrated-Performance/Problem-with-eigen-vectors-matrix-help/m-p/895501#M12006 <P>is there a reason why no one reply to my questions ?</P> Wed, 26 Nov 2008 16:16:53 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Problem-with-eigen-vectors-matrix-help/m-p/895501#M12006 liorwavebreak_tv 2008-11-26T16:16:53Z