[Fwd: Re: [Maxima] Proposed bug fix for Bug 505443]
Subject: [Fwd: Re: [Maxima] Proposed bug fix for Bug 505443]
From: Raymond Toy
Date: 27 Jun 2002 17:22:07 -0400
>>>>> "Richard" == Richard Fateman <fateman@cs.berkeley.edu> writes:
Richard> -------- Original Message --------
Richard> Subject: Re: [Maxima] Proposed bug fix for Bug 505443
Richard> Date: Thu, 27 Jun 2002 11:22:07 -0700 (PDT)
Richard> From: "R. William Gosper" <rwg at spnet>
Richard> To: fateman@cs.berkeley.edu
(Is this THE Gosper, the "only living 17th century mathematician", as
mentioned in the sources to CMUCL?)
Richard> I suspect the only correct expression involves an awkward NUMMOD, as in
Richard> (c105) block([return_nummod : true],asin(sin(x)));
Richard> %pi | %pi |
Richard> (d105) --- - |nummod(x + ---, 2 %pi) - %pi|
Richard> 2 | 2 |
Richard> which nobody seems to want, even though
Richard> (c106) sin(%);
Richard> (d106) sin(x)
Richard> Maybe I'll but a return_nummod check in halfangles.
I guess this is something we can try to do, but maxima doesn't have
nummod or return_nummod, so I probably won't do anything until after
this release goes out.
Ray