FFT Multiplication (HP-48G/GX/G+)
02-12-2014, 07:09 PM (This post was last modified: 02-12-2014 07:11 PM by Han.)
Post: #9
 Han Senior Member Posts: 1,882 Joined: Dec 2013
RE: FFT Multiplication (HP-48G/GX/G+)
Gerson's post already alluded to this, but there is a HUGE difference between computing with integers and non-integers on the HP50G. Since the HP49G, integers were considered a new object. That is, 2 is very different from 2. from an object-type point of view. So you will see a dramatic increase in speed just by switching your input from integer values to "integers-with-a-trailing-decimal-point."

The code Gerson posted could be made even faster by changing all the integers to decimals. 1 -> 1. and 2 -> 2. etc.

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 Messages In This Thread FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-10-2014, 09:25 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-10-2014, 10:02 PM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-11-2014, 09:04 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-11-2014, 03:34 PM RE: FFT Multiplication (HP-48G/GX/G+) - Christoph Giesselink - 02-11-2014, 09:22 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-11-2014, 10:48 PM RE: FFT Multiplication (HP-48G/GX/G+) - Ángel Martin - 02-12-2014, 12:51 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-12-2014, 08:09 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-12-2014, 02:41 AM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-13-2014, 01:16 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-13-2014, 03:16 AM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-14-2014, 12:34 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-14-2014, 01:31 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-14-2014, 12:07 AM RE: FFT Multiplication (HP-48G/GX/G+) - Han - 02-12-2014 07:09 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-12-2014, 07:38 PM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-14-2014, 10:37 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-15-2014, 01:22 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-15-2014, 08:26 PM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-15-2014, 09:41 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-15-2014, 10:19 PM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-15-2014, 11:23 PM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-15-2014, 11:53 PM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-16-2014, 01:51 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-16-2014, 02:25 AM RE: FFT Multiplication (HP-48G/GX/G+) - Raymond Del Tondo - 02-15-2014, 02:15 AM RE: FFT Multiplication (HP-48G/GX/G+) - Gerson W. Barbosa - 02-16-2014, 05:21 AM

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