https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-t-get-2d-dft-code-example-to-work/m-p/893251#M10576 I'm trying to get the code example for the 2d DFT on page C-53 of the MKL reference manual to work. I'm able to get the complex-to-complex code to work but the real-to-complex conjugate even code does not. <BR /><BR />For the input data I set all elements of the matrix Y_2D=1, so the output should have all zeros except for the zero frequency entry. Instead, the zero freq value is incorrect and I get non-zeros nearly everywhere else. Has any one else done 2d real-to-complex conjugate even transforms successfully? <BR /><BR />Thanks for help,<BR />Dave<BR /> Sat, 16 Dec 2006 01:03:18 GMT david_heim 2006-12-16T01:03:18Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-t-get-2d-dft-code-example-to-work/m-p/893251#M10576 I'm trying to get the code example for the 2d DFT on page C-53 of the MKL reference manual to work. I'm able to get the complex-to-complex code to work but the real-to-complex conjugate even code does not. <BR /><BR />For the input data I set all elements of the matrix Y_2D=1, so the output should have all zeros except for the zero frequency entry. Instead, the zero freq value is incorrect and I get non-zeros nearly everywhere else. Has any one else done 2d real-to-complex conjugate even transforms successfully? <BR /><BR />Thanks for help,<BR />Dave<BR /> Sat, 16 Dec 2006 01:03:18 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-t-get-2d-dft-code-example-to-work/m-p/893251#M10576 david_heim 2006-12-16T01:03:18Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-t-get-2d-dft-code-example-to-work/m-p/893252#M10577 <P>Are you doing forward or backward transformation. Check with the CCE format</P> Thu, 11 Jan 2007 06:24:19 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-t-get-2d-dft-code-example-to-work/m-p/893252#M10577 phani 2007-01-11T06:24:19Z