WP 34S bug

[Paul Dale]

A bug was reported a while back where the factorial of complex numbers with negative real components was incorrect:

Code:

WP34S emulator: (-6.2-7.6i)! = -20.3658 + i1.2046
WolframAlpha:   (-6.2-i7.6)! = -9.8594e-11 + i3.2965e-12

This was the result of two errors in the gamma function reflection formula and impacts all functions that rely on this:

• complex Beta
• complex Combinations
• complex Factorial
• complex Gamma
• complex LnBeta
• complex LnGamma
• complex Permutations
  

Fixes have been pushed to the sourceforge repository.

I expect that new firmware images will be built when those how do that get around to it. Don't hold your breath.


Pauli