A Tiny (WP34S) program does a lot
|
11-29-2014, 01:31 AM
Post: #8
|
|||
|
|||
RE: A Tiny (WP34S) program does a lot
(11-28-2014 10:05 PM)Paul Dale Wrote: The derivative of the gamma function is the digamma function (ψ), well is trivial to get the derivative from this. This function was implemented both in C and in XROM but it was omitted from the final firmware. It remains a compile time option. On the HP 50g, which has digamma built-in, I remember I just solved 'Psi(X)=0.' for X: X = 1.46163214497 and GAMMA(X), or (X - 1)!, = 0.885603194411 If only there were a closed form solution... 8*EulerGamma/(10 + 1/(2*(163 + √2))) Gerson. |
|||
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 1 Guest(s)