Vector arguments are passed in one-dimensional arrays. The array dimension (length) and vector increment are passed as integer variables. The length determines the number of elements in the vector. The increment (also called stride) determines the spacing between vector elements and the order of the elements in the array in which the vector is passed.
Wrappers are delivered as source code, which you must compile to build the wrapper library. Then you can substitute the wrapper and Intel MKL libraries for the FFTW library. The source code for the wrappers, makefiles, and files with lists of wrappers are located in the .\interfaces\fftw2xf subdirectory in the Intel MKL directory.
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Performs rotation of points in the plane.
Computes a matrix-vector product using a Hermitian matrix.
Solves a system of linear equations whose coefficients are in a triangular packed matrix.