- From: Bill Naylor <Bill.Naylor@mcs.vuw.ac.nz>
- Date: Wed, 26 Feb 2003 13:00:21 +1300 (NZDT)
- To: Paul Libbrecht <paul@activemath.org>
- cc: www-math@w3.org
On Wed, 26 Feb 2003, Paul Libbrecht wrote: > Date: Wed, 26 Feb 2003 00:43:43 +0100 > From: Paul Libbrecht <paul@activemath.org> > To: www-math@w3.org > Subject: Re: Java API for MATHML > Resent-Date: Tue, 25 Feb 2003 18:44:05 -0500 (EST) > Resent-From: www-math@w3.org > > > Stan Devitt wrote: > > >The content definitions for the arc trig functions > >used in appendix C were largely based on Abromovitz > >and Stegun, Section 4.4 -- see, for example, > > > >http://www.w3.org/TR/WD-MathML2-20021219/appendixc.html#cdef.arccos > > > >and more generally, were chosen to be consistent > >with OpenMath. > > > > > Actually which version of Abromovitz and Stegun ? > I hear some noise that the definition of arccot has been changed between > versions. If you check the Description child of CD, you will note that it says: "They are defined as in Abromowitz and Stegun (ninth printing on), with precise reductions to logs in the case of inverse functions." this is a relic of NAHG, so I take no responsiblity ;-) However it seems to me fairly precise ... no? Anyway as I said in a previous mail check out transc3 if you want the multivalued functions. > MathML having decided not to specify the definition domain... this may > be a problem, or ?? I guess that MathML decided to religate these more 'mathematically pedantic' issues to some other mechanism viz. OpenMath > (hence my request for any new system built with compatibility in mind to > declare >precisely< its compatibility). we can but hope! cheers, Bill > > Paul > >
Received on Tuesday, 25 February 2003 19:00:33 UTC