NumExpr is a fast numerical expression evaluator for NumPy. With it, expressions that operate on arrays (like '3*a+4*b') are accelerated and use less memory than doing the same calculation in Python.

xarray (pronounced "ex-array", formerly known as xray) is an open source project and Python package that makes working with labelled multi-dimensional arrays simple, efficient, and fun! Xarray ...

4 Questions to Ask About Allocating to Crypto in Portfolios Indexing, volatility, correlations, and portfolio weighting are key factors to consider.

To determine the best movies of the 21st century, we polled hundreds of celebrities. See how your favorite stars and directors voted.