MIGRAD, Gradient Minimisation

The MIGRAD command minimises the penalty function using its numerical derivatives of the sum of squares:

MIGRAD,CALLS=integer,TOLERANCE=real,STRATEGY=1;

The command has three attributes:

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

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

STRATEGY A code for the strategy to be used (default: 1). The user is referred to the MINUIT manual for explanations.

Example:

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