I previously wrote about typing elliptic fourier series; my Apple compiler is now capable of computing the offsets and also the relevant coefficients.

To compute a 7-day moving average:

As I wrote about previously I am working on a typed array language with the case of elliptic Fourier series as an example.

Elliptic Fourier series are a good example to kick the tires on array programming systems; J and Python, however, are both dynamically typed.

J and APL support (and encourage) a certain form of programming without error handling or library code reuse. The alternative wisdom goes against typical programming but it works together.

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