FFT Multiplication (HP-48G/GX/G+)

[Raymond Del Tondo]

(02-13-2014 03:16 AM)Gerson W. Barbosa Wrote:  67 seconds is pretty good considering the hp 50g does is 30 seconds.

Hi,

now my SysRPL version runs in about 22.9 seconds for the two 128 element arrays on a normal HP 48GX.

The most time-consuming parts are now the two FFT and the IFFT calls.
The final loop, which was the slowest part in the original program, now needs about 3 seconds only;-)

One could squeeze out another 2 seconds by using integer arithmetic in the final loop if applicable...

I'll post the commented SysRPL source tonight or tomorrow.

Cheers

Raymond