Retrieves the value of the one-dimensional index from a two-dimensional array.

Python is convenient and flexible, yet notably slower than other languages for raw computational speed. The Python ecosystem has compensated with tools that make crunching numbers at scale in Python ...

This repository supplements the paper "Fast Single-Snapshot Harmonic Recovery with 2D Sparse Arrays using BCCB Matrices". We implement computationally efficient versions of the ISTA, FISTA, and ADMM ...