Re: Can't get Mathematica to evaluate correctly a
- To: mathgroup at smc.vnet.net
- Subject: [mg111545] Re: Can't get Mathematica to evaluate correctly a
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Wed, 4 Aug 2010 07:39:58 -0400 (EDT)
- Reply-to: hanlonr at cox.net
The input expression must have higher precision
N[173746*Sin[10^22] +
94228*Log[171/10] -
78487*Exp[42/100], 10]
-1.341818958*10^-12
N[Release[Rationalize[Hold[
173746*Sin[10^22] +
94228*Log[17.1] -
78487*Exp[0.42]]]], 10]
-1.341818958*10^-12
Bob Hanlon
---- Damien Wyart <damien.wyart at free.fr> wrote:
=============
Hello,
I am using Mathematica 7.0.2 and playing a bit with an expression
analyzed in the following paper:
http://www.loria.fr/~zimmerma/papers/cise.pdf
I tried many constructions with N and SetPrecision and can't get
Mathematica to output the correct result (I am not very experienced with
Mathematica). Here is the expression :
173746*Sin[10^22]+94228*Log[17.1]-78487*Exp[0.42]
The correct result should be -1.341818958*10^-12 but even forcing each
term with N and a very large number, I am still not getting this value
at all.
Any help will be appreciated. Thanks in advance ; best regards,
--
Damien Wyart