Install libdogleg2 by entering the following commands in the terminal:
sudo apt update sudo apt install libdogleg2
Description:
Powell's dog-leg nonlinear least squares solver for sparse matrices
Solves unconstrained nonlinear least squares problems using Powell's dog-leg method. The user specifies a callback C function that returns the value and gradients of the model function at a particular operating point. This library takes a series of dog-leg steps to find a local minimum of the residual surface. . This library works with sparse matrices, which makes it suitable for efficiently solving very large problems.
Homepage: https://github.com/dkogan/libdogleg
Version: 0.14-1
Section: universe/libs