Dear commons-math.complex maintainers, I would like to add a static method to the Complex class that would work as follows:
double[] d = Complex.getInterleaved(Complex[] c); It would export the data from a Complex[] as a double[] twice the size of the Complex[] array with real and imaginary components alternating. Historically, methods sometimes have used interleaved data because it can be returned from methods in a single 1D primitive array which can be computationally advantageous. The JTransforms library is an example. However, interleaved is still a popular format for data especially with the advent of CUDA and OpenCL. OpenCL in particular makes use of a float2() class to handle complex numbers, and when Complex[] data is exported into an interleaved float[] array it can be passed directly to an OpenCL buffer without further manipulation. A related static method, say Complex[] c = Complex.interleavedToComplex(double[] d) would make a good complement to the above method and remove some extraneous boilerplate for people converting between these two (like me). There may be a better class for these static methods than the Complex class itself. Here I am thinking of methods like Integer.toString() . Would those involved with commons-math be happy if I checked out the code and submitted a pull request with this changes? Thanks, Eric
