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Apr
19
awarded  Nice Answer
Mar
29
answered How to plot a function and data at the same time?
Mar
17
comment Slow evaluation of NIntegrate when used as a pure function
You do in fact need more terms for smaller c to get the same accuracy, so that is expected. The 2 is from your taxis, which multiplies the Range[1023].
Mar
15
revised Slow evaluation of NIntegrate when used as a pure function
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Mar
15
revised Slow evaluation of NIntegrate when used as a pure function
add answer to update
Mar
15
comment Slow evaluation of NIntegrate when used as a pure function
What is the range of possible $d$ values?
Mar
15
comment Slow evaluation of NIntegrate when used as a pure function
Your new example with a real integration helps because now we can try to see what your restrictive options to NIntegrate[] are doing, if they are needed, or if they should be something else.
Mar
15
comment Slow evaluation of NIntegrate when used as a pure function
Then you'll need to provide a realistic enough example that it requires numerical integration and the evaluation of Bessel roots. Also with the infinite terms removed. Just give one set of numerical parameters (e.g. the first argument of BesselJZero[]) and the correct numerical answer.
Mar
15
revised Slow evaluation of NIntegrate when used as a pure function
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Mar
15
revised Slow evaluation of NIntegrate when used as a pure function
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Mar
15
answered Slow evaluation of NIntegrate when used as a pure function
Mar
15
comment Slow evaluation of NIntegrate when used as a pure function
I could have sworn I just said that.
Mar
15
comment Slow evaluation of NIntegrate when used as a pure function
@belisarius: for what he wrote, it won't diverge. It will just give 3000 for the first term (the number of Bessel evaluations, 30, times the integration range of 100). Probably not what he wants though, since he wanted to integrate to $\infty$.
Mar
15
comment Slow evaluation of NIntegrate when used as a pure function
Well, first off, you don't need BesselJZero. Those function values are just $\pi$, $2\pi$, $3\pi$ ...
Feb
21
awarded  Informed
Feb
20
comment How to correctly import data zipped with the “deflate” algorithm?
By the way, I am a Rocket Scientist. So I can easily see how Brain Surgeons would mess up the specification. :-)
Feb
20
revised How to correctly import data zipped with the “deflate” algorithm?
results of experiment
Feb
20
revised How to correctly import data zipped with the “deflate” algorithm?
teaser
Feb
20
revised How to correctly import data zipped with the “deflate” algorithm?
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Feb
20
answered How to correctly import data zipped with the “deflate” algorithm?