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location France
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visits member for 1 year, 10 months
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My Mathematica version : 8.0.4, windows 7


1d
revised Merging two lists with possible different keys
added 506 characters in body
1d
revised Merging two lists with possible different keys
added 198 characters in body
1d
answered Merging two lists with possible different keys
Sep
30
awarded  Explainer
Sep
24
awarded  Autobiographer
Aug
7
answered How to sort my list?
Jul
30
comment Why does Fourier give a shifted frequency?
@xslittlegrass I think you are right : your frequency error is not due to a lack of periods in the waveform (with 10 periods, the phenomenon is negligible)
Jul
30
comment Why does Fourier give a shifted frequency?
When the waveform has very few periods, the magnitude of the Fourier transform depends on the phase of the Cos[30 x]. Try Cos[30 x + Pi] and you will see the peak above the expected frequency.
Jul
22
awarded  Revival
Jul
18
answered How to display the indices/element positions of a ragged array?
Jun
15
comment Algorithm to generate a certain matrix
Array[{{-2, -1}, {-2, -1}} + {#1 - 1, #2 - 1} &, {4, 4}]
Jun
13
comment Merge two lists for List3DPlot
What is the most effective way to add rows and columns to a matrix
Jun
13
comment Merge two lists for List3DPlot
MapThread[Append, {list1, list2}]
Jun
10
revised Why PlotRange doesn't work for this set of values?
improved code formatting
Jun
6
comment Delete Missing data from coordinate sets
DeleteCases[coordinates, _?(MemberQ[#, _Missing] &)] or DeleteCases[coordinates, x_ /; MemberQ[x, _Missing]] work
May
16
answered Determine frequency of oscillations
Mar
16
awarded  Enlightened
Mar
16
awarded  Nice Answer
Mar
4
answered Converting from TableForm to Grid
Feb
19
comment How to use Select to exclude a single element which I can control?
@Steve Yes it is