c++ mathematical expression parsing and evaluation library
The C++ Mathematical Expression Toolkit Library (ExprTk) is a versatile, simple to use, easy to integrate and extremely efficient runtime mathematical expression parser and evaluation engine. ExprTk supports numerous forms of functional, logical and vector processing semantics and is very easily extendible.
Homepage: https://www.partow.net/programming/exprtk/
Maintainer: Johannes Thyssen Tishman <jtt@openbsd.org>