CasADi is a symbolic framework for numeric optimization implementing automatic differentiation in forward and reverse modes on sparse matrix-valued computational graphs. It supports self-contained C-code generation and interfaces state-of-the-art codes such as SUNDIALS, IPOPT etc. It can be used from C++, Python or Matlab/Octave.

C++ Mathematical Expression Parsing And Evaluation Library (mirror) https://www.partow.net/programming/exprtk/index.html

Blitz++ Multi-Dimensional Array Library for C++

A Finite Difference Method Engine in C++

oomph-lib is an object-oriented, open-source finite-element library for the simulation of multi-physics problems. It is developed and maintained by Matthias Heil and Andrew Hazel of the School of Mathematics at The University of Manchester, along with many other contributors.

High-Level DSEL for designing C++ numerical code

Square root function implementation in various languages.

This is simple example application of C++ factory pattern in numerical solution first order ordinary differential equation.

Trabalhos feitos para a disciplina de Matemática Computacional, semestre 2018.1, Universidade Federal do Ceará - Campus Quixadá.

Generates volume meshes of vertical columns of skin layers:

Exercises in scientific computing

Laboratoria z Metod Numerycznych na AGH WIMiIP [prowadzący: dr hab. inż. Marcin Hojny]