Converted few common functions to fixed point.
Converted cmplx_matrix_square, matrix_diag_product, diag_matrix_product and matrix_product_diag to fixed point.
pytest results: 358 failed, 227 passed, 381 skipped
MLD:
Original: 7 cases > 5
8.623271 9.196089 9.304973 10.832478 10.853292 12.952374 22.458605
+10dB: 19 cases > 5
5.370934 5.663041 5.663041 6.287786 6.327793 6.992575 7.858168 10.755767 10.755767 11.334802 14.898525 16.604309 16.975687 19.35298 19.374039 19.761044 23.5809 27.03828 38.923706
-10dB: 8 cases > 5
5.622073
5.965
6.009636
6.769006
6.972995
8.736854
15.85026
24.995966
Edited by Sandesh Venkatesh