Faster inverse gamma and factorial for the WP 34S

02162015, 07:30 PM
Post: #34




RE: Faster inverse gamma and factorial for the WP 34S
(02162015 07:09 PM)Dieter Wrote:I should've clarified that I tried the XROM code (trunk/xrom/digamma.wp34s), not the C version.(02162015 05:46 PM)Bit Wrote: The builtin digamma function that Pauli mentioned, and which isn't available by default, is more accurate. Perhaps up to 33 digits in double precision mode if I see it correctly. (02162015 07:09 PM)Dieter Wrote: I wonder what the internal digamma function might return for Ψ(1,4616321449768362) and ...363? Can you post the results with all 34 digits?Here you go, only 21 correct digits in these cases (the omitted digits are zeros): 8.199 917 911 936 391 396 113 e12 8.200 014 679 160 935 407 842 e12 

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