Google Open Source Blog: Introducing Ceres Solver - A Nonlinear Least Squar...

Google Open Source Blog: Introducing Ceres Solver - A Nonlinear Least Squar...: 

Solving non-linear least squares problems comes up in a broad range of areas across science and engineering - from fitting complicated curv...

* non-linear least squares : https://en.wikipedia.org/wiki/Non-linear_least_squares