ASPIRE FFT and NUFFT Tutorial Example

[garrettwrong]

User asked how to use our FFT and NUFFT components. These components are documented, but we don't have a short getting started tutorial. Should be easy enough to make one that shows:

• FFT and Inverse on 1,2,3 dimensions.
• FFT with stack axis
• Configuring a different backend in config
• NUFFT to resample onto a grid
• (Configuring a different backend in config, noting we currently only have one option here Alternative nufft #276 ).

Good rainy day project.

[janden]

Right. Since this is an internal component, I wouldn't put it too high up the priority list, however.