https://community.intel.com/t5/Intel-Integrated-Performance/Problems-with-2D-FFT/m-p/922240#M15823 <DIV></DIV> <DIV></DIV> <DIV>I have a matrix 8X4 (all initialized by 3).If Icompute FFT the first line should be 24 and all the rest should be zero instead I get a single value of 192 which means thatit computed the fft as vector not as matrix !!! I don't understand what is the problem with my code ?!?!?!?! Please help me !</DIV> <DIV></DIV> <DIV></DIV> Tue, 21 Dec 2004 22:00:14 GMT Deleted_U_Intel 2004-12-21T22:00:14Z https://community.intel.com/t5/Intel-Integrated-Performance/Problems-with-2D-FFT/m-p/922240#M15823 <DIV></DIV> <DIV></DIV> <DIV>I have a matrix 8X4 (all initialized by 3).If Icompute FFT the first line should be 24 and all the rest should be zero instead I get a single value of 192 which means thatit computed the fft as vector not as matrix !!! I don't understand what is the problem with my code ?!?!?!?! Please help me !</DIV> <DIV></DIV> <DIV></DIV> Tue, 21 Dec 2004 22:00:14 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Problems-with-2D-FFT/m-p/922240#M15823 Deleted_U_Intel 2004-12-21T22:00:14Z https://community.intel.com/t5/Intel-Integrated-Performance/Problems-with-2D-FFT/m-p/922241#M15824 <DIV>I'm not sure I understand your problemquite correctly. But if you have all values being the same =3 in your [8][4] matrix, then you should also expect only a single non-zero value (which is rescaled average of all block values - depending onwhen you do FFT normalization)in your FFT matrix.</DIV> <DIV></DIV> <DIV>Regards,</DIV> <DIV></DIV> <DIV>Andrew</DIV> Wed, 22 Dec 2004 00:59:52 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Problems-with-2D-FFT/m-p/922241#M15824 andrewk88 2004-12-22T00:59:52Z