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Feb
5
answered Using DSolve to solve for x[t,parameter]
Feb
5
answered How to splice together several instances of InterpolatingFunction?
Feb
3
comment Documentation searches hang frequently: Anyone else dealing with this?
I have seen the same problem with version 9.0.0 on Windows 7 64bit. I just downloaded version 9.0.1 and unfortunately the problem is still there. It probably is worth mentioning that the problem does only exist if the highlighted word is not a known Mathematica symbol.
Feb
3
comment Using DSolve to solve for x[t,parameter]
@user5708: I don't know how familiar you are with this site, but if you are happy with b.gatessucks answer you should accept it. If you expect more or different answers you could also wait with accepting. Ss the answer seems to do exactly what you want and is quite straightforward I woudn't expect more answers for this question, though...
Feb
3
comment Using DSolve to solve for x[t,parameter]
@rcollyer: o.k., I don't want to be nitpicking, I just think it will improve the question and probably help getting more answers if the title is corrected (although there now is a decent answer)...
Feb
3
comment Documentation searches hang frequently: Anyone else dealing with this?
same problem here (also on win7 64bit). I'm just downloading version 9.0.1 which mentions some fixes and will report whether that has been solved...
Feb
3
comment How to integrate functions of linearly interpolated data?
@halirutan: do you know where the "Points" option for "TrapezoidalRule" is documented and what exactly it does?
Feb
3
revised How to integrate functions of linearly interpolated data?
added notes about uneffective option settings
Feb
3
comment Using DSolve to solve for x[t,parameter]
@rcollyer: how does that change the fact that the title is a contradiction in terms?
Feb
2
answered How to use the Find and Replace Dialog Window?
Feb
2
comment Using DSolve to solve for x[t,parameter]
You probably want to rethink the title of your question: An ODE by definition only has one independent variable. In your example theta is just a parameter, not an independent variable...
Feb
2
comment How to integrate functions of linearly interpolated data?
@AlexeyPopkov: I tried to make sure that I just played around with those options and it turns out that you are right: With just "InterpolationPointsSubdivision" the difference to the "exact sum" is not better than Automatic, it is the combination of "LocalAdaptive", "Partitioning" and PrecisionGoal that seems to make a difference. Certainly there is room for more investigation and optimization...
Feb
1
comment Why does this numeric integral fail to converge?
@soodeh: why would you expect it to converge? Where does your knowledge come from that it must be smaller than 1? When looking at the simplified expression and various plots it looks like the integrand has singularities and there is no indication why these should be integrateable. Having just numeric coefficients makes things even worse: with those it's impossible to do any further analysis about cancellations and such. I agree that you probably need to supply more background if you want people to be able to help you...
Feb
1
comment How to integrate functions of linearly interpolated data?
@gpap: it worked for me as I was using version 9. I think that the options I suggest for NIntegrate are also relatively new and only available since version 8.
Feb
1
revised How to integrate functions of linearly interpolated data?
added 37 characters in body
Feb
1
revised How to integrate functions of linearly interpolated data?
improved formulations
Feb
1
answered How to integrate functions of linearly interpolated data?
Feb
1
comment How to split a file?
@HpRadojewskiSchäferVon: if that's your opinion then try and make that a feature request for future versions. I doubt that WRI will implement that -- the answer to larger and larger datasets seems not to be better handling of huge sequential accessed files, IMHO... This is just a question/answer site, I can only suggest to use functionality that's there. If you are on windows and need that functionality, try whether you can make use of SetEndOfFile and SetFileValidData via NETLink.
Jan
30
comment Function that evaluates in notebook does not evaluate in CDF
@Anuk: good to hear it did help you. If you want this to be more useful for others you still might want to reformulate your question and the title so others have a better chance to find it...
Jan
28
answered How to split a file?