[ 源代码： libdogleg ]
软件包：libdogleg-doc（0.15.4-1）
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.
This package contains the documentation