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Knowledge Base

Returns the Chebyshev interpolation of a sampled function. Chebyshev interpolation is useful for accurately interpolating a smooth function using a very small number of samples. The key requirement for this type of interpolation to work is that the function is sampled on the Chebyshev roots grid.


Supported Product: FDTD, MODE





Interpolates the function f onto the xi points. It assumes that f contains the samples of the function taken on the Chebyshev roots grid specified in x; x must be constructed by the call

# x = chpts(xmin,xmax,NumPts), otherwise an error is returned.



See example for the chpts command.


See Also


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