 <a href="https://github.com/astro-informatics/so3/tree/main/src/matlab/so3_demo_symmetric_sampling.m">so3_demo_symmetric_sampling</a>
  Demo to compute inverse and forward transform of complex
  function, using a symmetrically sampled signal.

  <a href="https://github.com/astro-informatics/so3/tree/main/src/matlab/so3_demo_covariance.m">so3_demo_covariance</a>
  This demo runs a series of forward transforms from random coefficients
  and compares the transformed signal's covariance with the theoretical
  