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Jun
28
comment Backward compatibility issues while DumpSaving Interpolation polynomials
@ruebenko The //InputForm takes forever to crank though.. at least on my 2GB RAM Linux machine running Mathematica 7.
Jun
28
comment Backward compatibility issues while DumpSaving Interpolation polynomials
@ruebenko Useful! Thanks!
Jun
28
comment Backward compatibility issues while DumpSaving Interpolation polynomials
Will try your approach of compressing and exporting as a string.
Jun
28
asked Backward compatibility issues while DumpSaving Interpolation polynomials
Jun
27
accepted Laplacian or Grad of an InterpolatingFunction
Jun
26
accepted Inconsistent initial and boundary conditions
Jun
25
comment How to tell mathematica not to resolve stiffness issues
@rcollyer FullForm[Derivative[0,1]u[t,xMin]] Still gives me Times[Derivative[0,1],u[t,xMin]] on a windows 64 bit machine, but mathematica 7.0. As we don't have mathematica 8.0 on campus.
Jun
23
accepted How to tell mathematica not to resolve stiffness issues
Jun
23
comment How to tell mathematica not to resolve stiffness issues
Thats very interesting! I didn't think about using MaxSteps. I'll give that a shot as you have demonstrated for a bunch of other problems. Thanks!
Jun
23
comment How to tell mathematica not to resolve stiffness issues
@AlbertRetey "Crap" was for my error of not formatting it... so that scatological statement was directed at moi! :P
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@rcollyer Yes, but it copies absolutely fine on my machine. Is this now OS specific? I use a linux machine. I don't have the Derivative[0,1]*u[t,xMin] and yes, it is Derivative[0,1][u][t,xMin]
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@rcollyer Thats quite strange.
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@rcollyer Hmmm... its copying fine on my linux machine... :(
Jun
21
revised How to tell mathematica not to resolve stiffness issues
code formatting
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@AlbertRetey Crap! Sorry
Jun
21
revised How to tell mathematica not to resolve stiffness issues
adding example
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@AlbertRetey Just editted my post with an example.
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@J.M. I was reading about stiffness and obv. I came across the Jacobian and such. I was wondering if there is anyway of checking the jacobian periodically to detect stiffness....
Jun
21
comment How to tell mathematica not to resolve stiffness issues
@J.M. Yes I have. What If I don't want to use stiffness switching? Plus I already use the BDF method which is useful for stiff equations.. but only up to a point.
Jun
21
asked How to tell mathematica not to resolve stiffness issues