$Assumptions
- To: mathgroup at smc.vnet.net
- Subject: [mg92609] $Assumptions
- From: Ruth Lazkoz Sáez <ruth.lazkoz at ehu.es>
- Date: Wed, 8 Oct 2008 06:24:50 -0400 (EDT)
Dear all,
I seem to be unable to change some default options globally.
At the top of my notebook I have
$Assumptions = {MaxRecursion -> 30, AccuracyGoal -> 10};
Then we I evaluate NIntegrate[Exp[-x^2], {x, 20., 40.}]
I get 4.78196*10^-176
But if I evaluate NIntegrate[Exp[-x^2], {x, 20., 40.}, MaxRecursion -> 30,
AccuracyGoal -> 10]
I get quite a different value, 1.36703*10^-177
I had the same problem trying to change the options for fonts in plots,
and then I had to add the options I wanted
in every plot, I mean evaluation something like $TextStyle ={whatever}
before doing the plots did not work.
Hope you can help me. Thanks,
Ruth Lazkoz