Take the 2-minute tour ×
Mathematica Stack Exchange is a question and answer site for users of Mathematica. It's 100% free, no registration required.

I have been working with Mathematica 7 and 8 to numerically solve partial differential equations by MethodOfLines of NDSolve. Since our organization upgraded to version 9, the calculations lose stability and diverge after a rather short time. (With earlier versions, there was also a divergence but at a 100 times longer time which did not bother us.) The problem persists on several computers, some running with Windows and others running Linux.

share|improve this question
7  
First step: edit your question to include your PDEs demonstrating the instability you speak of. –  J. M. Apr 12 '13 at 15:45
add comment

Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.