Ten years ago I wrote about how cosine makes a decent approximation to the normal (Gaussian) probability density. It turns…

Continue Reading# approximation

## Sinc approximation

If a function is smooth and has thin tails, it can be well approximated by sinc functions. These approximations are…

Continue Reading## Elementary 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 Reading## Chebyshev approximation

In the previous post I mentioned that Remez algorithm computes the best polynomial approximation to a given function f as…

Continue Reading## Remez 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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