sintran - Fast Sine Transform

Calculate the coefficient of sines for equal spaced samples between [0, pi]

Given equal sampled data points [x0,x1,...,xn] between [0,pi], approximate it with sines

i.e. a0 sin(0x) + a1 sin(1x) + a2 sin(2x) + ... + an sin(nx)

return [a0, a1, a2, ... , an] when second input argument = 1.

anything else for [a0, a1, a2, ... , an] to [x0,x1,...,xn]

A - original data in columns

B - transformed data in columns

direction - set equal to 1 for nodal to spectral

anything else for spectral to nodal

Eleven Shiyi Chen

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