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#1
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Inverse Fourier Transform
does any body have a VB code for an inverse fourier trasnform?
thx Dan |
#2
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Inverse Fourier Transform
does any body have a VB code for an inverse fourier trasnform?
I'm not familiar with it myself, but according to this link... http://electron9.phys.utk.edu/optics...m6/fourier.htm it is part of the Analysis ToolPak (see 4th paragraph). Rick |
#3
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Inverse Fourier Transform
thanks Rick, but I am looking for a VBA code
that link presents theory and an excel file without the code "Rick Rothstein (MVP - VB)" wrote: does any body have a VB code for an inverse fourier trasnform? I'm not familiar with it myself, but according to this link... http://electron9.phys.utk.edu/optics...m6/fourier.htm it is part of the Analysis ToolPak (see 4th paragraph). Rick |
#4
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Inverse Fourier Transform
Dan,
Are you talking discrete or FFT? There should be millions of code examples out there, but you have to be careful about how they specify input & output (eg. Real vs. Imaginary, or Modulus vs. Phase), especially for the FFT-based routines. (Make sure you test on a known problem.) I think I only have code in Fortran & QuickBasic, and I seem to remember that the latter was a major pain to use (because of the input/output thing). -- Al "Dan" wrote: does any body have a VB code for an inverse fourier trasnform? thx Dan |
#5
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Inverse Fourier Transform
See Barthog's question on Fourier Transform, the answers there may be helpful.
drhalter "Dan" wrote: does any body have a VB code for an inverse fourier trasnform? thx Dan |
#6
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Inverse Fourier Transform
Dan,
The article tells you "To access the tool click "Tools, Data Analysis, Fourier Analysis" on Excel's toolbar.". So it is already included in Excel, if you have the Analysis Tool Pack installed. Whilst I imagine you could write you own code in VBA, I would guess it would be 1 or 2 orders of magnitude slower than Excel's code. NickHK "Dan" wrote in message ... thanks Rick, but I am looking for a VBA code that link presents theory and an excel file without the code "Rick Rothstein (MVP - VB)" wrote: does any body have a VB code for an inverse fourier trasnform? I'm not familiar with it myself, but according to this link... http://electron9.phys.utk.edu/optics...m6/fourier.htm it is part of the Analysis ToolPak (see 4th paragraph). Rick |
#7
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Inverse Fourier Transform
how do I find this Barthog stuff?
thx "drhalter" wrote: See Barthog's question on Fourier Transform, the answers there may be helpful. drhalter "Dan" wrote: does any body have a VB code for an inverse fourier trasnform? thx Dan |
#8
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Inverse Fourier Transform
sorry, I haven't been checking my replies:
Just type "Barthog" in the search box at the top of the forum (I'm looking at the forum on www.microsoft.com). It pops right up, just your question on fourier transform and his. drhalter "Daniel" wrote: how do I find this Barthog stuff? thx "drhalter" wrote: See Barthog's question on Fourier Transform, the answers there may be helpful. drhalter "Dan" wrote: does any body have a VB code for an inverse fourier trasnform? thx Dan |
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