Basic Math Functions

[CosmoMatt]

Translate basic math tiling functions from s2let (c) to s2wav (base python).

Difficulty:

• Low (This is a nice first issue to pick up).

Background:

• The wavelet transform works by "tiling" the harmonic domain with sets of filters, which can be designed for particular applications. To compute the tiling filters we need to evaluate the functions which generate those filters, and so it is useful to have those functions stored and easily accessed by more complicated parts of the package.

S2let File to translate:

• can be found here

S2Wav File location:

• should be put in the main package directory here

Notes:

• There are also a few extra functions in the s2let file that are useful, but everything below this line can be ignored for the time being!