Explicit Lagrange Coefficient Formulas
Given a desired fractional delay of samples, the Lagrange
fraction-delay impulse response can be written in closed form as
The following table gives specific examples for orders 1, 2, and 3:


![$ h = [1-\Delta,\Delta]$](http://www.dsprelated.com/josimages_new/pasp/img1034.png)


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