[HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL

01022024, 12:41 PM
(This post was last modified: 01022024 01:51 PM by Gil.)
Post: #4




RE: [HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL
As many of these functions can be expressed in term of erf, erfc, that accept theorically a complex number as argument, it might be interesting to have an alternative way of computing them (with complex number) in the HP50G, just to compare the results with the ones calculated in my programs.
By the way, what do you find for inverse_ERFc(1.93206244519E475)? The answer should be almost 33, and not infinity as ERFc(33) =1.93206244519E475). Other question: inverse_erf(1E9) =? The correct answer should be about 8.86226925455E10 (by effective integral execution), and not 8.86622703261E10 (by UTPN). 

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Messages In This Thread 
[HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL  LdBeth  01012024, 07:56 AM
RE: [HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL  Gil  01012024, 08:09 PM
RE: [HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL  LdBeth  01022024, 04:36 AM
RE: [HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL  Gil  01022024 12:41 PM
RE: [HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL  LdBeth  01032024, 10:42 AM
RE: [HP49/50g] ERF, ERF inverse, Q, Q inverse in SysRPL  Gil  01032024, 02:52 PM

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