Docs updated
Intro and module structure completed.
Finished the tutorial
Fixed a typo
Fixed a typo
Fixed a doctest
Fixed Sphinx errors
Fixed the Docs
Few typos fixed
Matrix equation updated
Docs moved to Sphinx
Issue 3656: Implementation of fancy indexing in matrix
An example added, user parameters for BQDE
Corrected gcd
Corrected a typo
Corrected a typo
Corrected a typo
Corrected a typo
give Sparse an extract method; let Sparse use fancy indices
remove testing for slice in a2idx