Numexpr: Fast numerical array expression evaluator for Python, NumPy, Pandas
Summary
NumExpr is a fast numerical expression evaluator for NumPy. It accelerates array operations and reduces memory usage by avoiding intermediate allocations. Its multi-threaded engine can utilize CPU cores and optionally MKL for faster transcendental operations; the page covers installation, usage with examples, free-threading considerations for CPython 3.13+, and docs.