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- MKL's cosine transform for strided data

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Divakar_V_

Beginner

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07-12-2011
12:31 PM

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MKL's cosine transform for strided data

However, there is no documented way to apply cosine transform to strided data. In particular, suppose

a b a b a b a b a b a b ....

is a sequence of doubles. I want to apply a cosine transform to the a's and to the b's. Is there a way to do that?

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mecej4

Black Belt

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07-12-2011
03:06 PM

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In Fortran as well as C, you can, of course, extract the 'a's into one array, the 'b's into another and use such an array as the input argument.

You could put your data into a 2-D array:

a b

a b

a b

and pass each column to the FFT routine.

Divakar_V_

Beginner

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07-12-2011
04:31 PM

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Gerald_H_

Beginner

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03-17-2017
02:47 PM

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