Ten years ago I wrote about how cosine makes a decent approximation to the normal (Gaussian) probability density. It turns…
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Sinc approximation
If a function is smooth and has thin tails, it can be well approximated by sinc functions. These approximations are…
Continue ReadingElementary approximation to “impossible” integral
The previous post looked an integral that is “impossible” in the sense that it cannot be computed in closed form.…
Continue ReadingChebyshev approximation
In the previous post I mentioned that Remez algorithm computes the best polynomial approximation to a given function f as…
Continue ReadingRemez algorithm and best polynomial approximation
The best polynomial approximation, in the sense of minimizing the maximum error, can be found by the Remez algorithm. I…
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