Faster inverse gamma and factorial for the WP 34S

[Dieter]

(02-08-2015 05:39 PM)Bit Wrote:  

(02-08-2015 05:27 PM)Dieter Wrote:  

Awesome. I can't work on this right now but I'm glad the real experts have taken on the issue.

Real experts would have included a perfect solution for arguments at or close to the Gamma minimum. ;-) There was a similar problem when Lambert's W was implemented in XROM, but back then I could provide a solution. Let's see if the community can come up with something similar here.

Test cases:

Code:

   0,88560 31944 10888 70027 88159 00582 5887
=> error

   0,88560 31944 10888 70027 88159 00582 5888
=>  1,4616 32144 96836 23537 47806 24573 3288

Otherwise it's not perfect. ;-)

Dieter

Edited to correct the last value 1,4616...