Introduction - If you have any usage issues, please Google them yourself
The Levenberg-Marquardt(LM)algorithm is an iterative technique that locates
the minimum of a multivariate function that is expressed as the sum of squares
of non-linear real-valued functions[4,6].It has become a standard technique
for non-linear least-squares problems[7],widely adopted in a broad spectrum of
disciplines.LM can be thought of as a combination of steepest descent and the
Gauss-Newton method.