Re: Fast FEXP approximation

by Frank <fjrusso@[EMAIL PROTECTED] > Mar 27, 2008 at 04:23 PM

To add another data point here are my results:
FLOAD 'C:\AIMind-I\fexp.f'  ok
test
-0.05e                      : 2.08548 % error
0.5e                        : -.457566 % error
5e                          : .956045 % error
50e                         : 2.57166 % error
701e                        : .000000 % error
5e fexp         : Elapsed time: 00:00:01.837
5e fexp-fast    : Elapsed time: 00:00:01.884
701e fexp       : Elapsed time: 00:00:04.759
701e fexp-fast  : Elapsed time: 00:00:05.242 ok
----------------------------------------------------

> \ FORTH> test
> \ -0.05e =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: 2.085481 % error
> \ 0.5e =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: -0.457566 %
error
> \ 5e =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: 0.956045 %
error=

> \ 50e =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 : 2.571662 % error
> \ 701e =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: 0.000000 % error
> \ 5e fexp =A0 =A0 =A0 =A0 : 0.879 seconds elapsed.
> \ 5e fexp-fast =A0 =A0: 0.480 seconds elapsed.
> \ 701e fexp =A0 =A0 =A0 : 0.522 seconds elapsed.
> \ 701e fexp-fast =A0: 3.806 seconds elapsed. ok

9 Posts in Topic:

Fast FEXP approximation

Ian Osgood <iano@[EMAI

2008-03-25 07:45:30

Re: Fast FEXP approximation

Andrew Haley <andrew29

2008-03-25 18:10:46

Re: Fast FEXP approximation

Ian Osgood <iano@[EMAI

2008-03-25 11:25:31

Re: Fast FEXP approximation

mhx@[EMAIL PROTECTED] (M