Faster inverse gamma and factorial for the WP 34S

[Bit]

(02-06-2015 07:39 AM)BarryMead Wrote:  Inverse Gamma Accuracy Issue.
Bit: When I enter the following into wolfram alpha:
1.5=gamma(x) solve for x, I get an answer: 2.6627663453201472954412987

When I enter 1.5 and use the compiled inverse gamma function on the wp34sgui_Bit.exe eumulator, in double precision mode I get 2.705794548255370.

If I use the same compiled wp34s.dat image on the QT emulator I get the same answer as wolfram alpha.
Why is that?

My builds support a few extra instructions and because of that the instruction codes are different and wp34s.dat files that contain programs aren't compatible with the official versions. You'd need another wp34s.op file to be able to compile the source correctly for my builds.

There's no secret sauce: You can apply my patches to a source tree, recompile everything and generate a wp34s.op file. But I'll include it in my next release to make it easy.