taylor series, bfloat, zerop enhancements, something to think about, vs. Macsyma
Subject: taylor series, bfloat, zerop enhancements, something to think about, vs. Macsyma
From: John Lapeyre
Date: Wed, 04 Jan 2012 17:42:09 +0100
> also, bfloat(1/3,100) gives 100 digits of 1/3. Maxima's bfloat
> ignores 2nd. argument.
There is something like that in mixima; maybe it could be adapted.
It even goes a bit further, but also obscures what's happening.
(%i1) [ Head( N(Pi)) , Head( N(Pi,16) ), Head( N(Pi,17) ) ];
(%o1) [Real, Real, Real]
(%i2) MiximaHeadStrict : false$
(%i3) [ Head( N(Pi)) , Head( N(Pi,16) ), Head( N(Pi,17) ) ];
(%o3) [Real, Real, BFloat]
It might also be nice to display a single number
with higher precision without changing the fpprintprec.
btw. I don't know if maxima has something like Head() or lisp's
type-of. It's useful to have a what_is_this() function.
-- John Lapeyre