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1d
comment Programming - The linear iterative method problems
A Tag Times is .. Protected error is typically the result of missing statement delimiters (eg ;, , ). When you say you modified the mistakes did you update code in the question?
1d
answered Evaluation of a large integral
1d
comment GIF file breaking Import
don't know whats wrong with the file, but the hang i think results from "gif.exe" ( which mathematica evidently uses ) hanging.
1d
answered Overwriting first line of large file
2d
comment Setting a Row from a Matrix as Variable
as a fundamental issue your Do loops should be Tables. The posted answer is better of course.
2d
comment Does it help to do any preprocessing before `FindSequenceFunction`?
interesting, but without some example to work this seems practically out of scope of the site.
2d
comment Why is my compiled code slower?
way before messing with Compile learn to utilize mathematica object oriented programming and wealth of built in functions. For a start look up InentityMatrix..
2d
revised BSplineFunction derivatives wrong if using weights?
added 2 characters in body
2d
revised BSplineFunction derivatives wrong if using weights?
added 29 characters in body
2d
answered BSplineFunction derivatives wrong if using weights?
Jul
29
comment GUI->Text code conversion
mathematica.stackexchange.com/questions/2202/…
Jul
29
comment Export Plot to formatted data file
some info mactalk.com.au/11/…, but why use this toy if you have mathematica?
Jul
29
comment Overwriting first line of large file
... you might start by loading up the first line with blanks, then when you want to add , rewrite the line keping the length fixed. off hand i'm not certain mma can do that but its worth a try.
Jul
29
comment Overwriting first line of large file
there is no way around rewriting the file. this is not a mathematia isue but a result of the way the os stores the file. id imagine some shell tools will do this faster than mathematica though
Jul
28
answered Zero-order interpolation not going fully around
Jul
28
comment Zero-order interpolation not going fully around
good catch noting the inconsistency in the ListLinePlot and ListInterpolation implementations. Of course both strictly follow what the docs say: "yields a collection of flat regions, with steps at each data point "
Jul
27
comment Zero-order interpolation not going fully around
doesn't extending the plot range to eg 1.001 close it? I'm still at a loss as to why you dont just use the first order interpolation.
Jul
26
comment NSolve for large models
try working with findroot. your question needs a better title by the way (what does Solve have to do with anything?)
Jul
26
comment Zero-order interpolation not going fully around
sorry i cant actually run things here. my thought is the interpolation function is correct and you are seeing an artifact of the way plot handles discontinuous functions
Jul
26
comment Zero-order interpolation not going fully around
on furthe thought i suspect if you Plot[ftdata[t][[1]],{t,0,1}] this will begin to make sense.