LMDIF, Gradient Minimisation

The LMDIF command minimises the sum of squares of the constraint functions using their numerical derivatives:

LMDIF,CALLS=integer,TOLERANCE=real;

It is the fastest minimisation method available in MAD. The command has two attributes:

CALLS The maximum number of calls to the penalty function (default: 1000).

TOLERANCE The desired tolerance for the minimum (default: ).

Example:

LMDIF,CALLS=2000,TOLERANCE=1.0E-8;