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regcurry
regcurry16-Pearl
16-Pearl
April 20, 2017
Solved

2 questions on Fourier transforms in Mathcad 15

1.  Unless I am missing something, there is a inconsistency in the time conventions of the fft and the symbolic Fourier transform function, fourier.  See attached

2.  Has anyone developed a Filon technique Fourier transform in Mathcad 15?

Thanks,

Reg

-MFra-Answer
21-Topaz II
April 20, 2017

Hi Reg Curry,

there is a whole collection of mathcad inconsistencies, to which we can add this on the Fourier transform. It follows a comparison with the Wolfram results:

Fourier transforms.jpg

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11 replies

-MFra-21-Topaz IIAnswer
21-Topaz II
April 20, 2017

Hi Reg Curry,

there is a whole collection of mathcad inconsistencies, to which we can add this on the Fourier transform. It follows a comparison with the Wolfram results:

Fourier transforms.jpg

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regcurry
regcurry16-PearlAuthor
16-Pearl
April 20, 2017

F.M.--

Thanks much.

By the way, how did you input the programming version of fourier built-in function with alpha >0  ??  When I try to add a programming line the symbolic arrow appears only after the alpha >0, and not for the whole expression.  There is clearly a syntax input I don't understand for using constraints with the built-in functions in programming mode.

Thanks again.

Reg

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regcurry
regcurry16-PearlAuthor
16-Pearl
April 20, 2017

In summary, with F.M. help above, attached is my summary of inconsistencies between symbolic integral Fourier Transforms and the built-in Symbolic Fourier Transforms.

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