Number of iterations

Syntax: | `FIT\ITMAX n y=expression FIT\WEIGHTS\ITMAX w n y=expression FIT\WEIGHTS\ITMAX\TOLERANCE w n eps y=expression FIT\ITMAX\TOLERANCE n eps y=expression`

The `\ITMAX` qualifier allows the user to specify the maximum number of iteration steps for the fit. When this maximum number is reached, the fit will stop, and the variable parameters will be updated to their last values. The fit will also stop if the fit is successful before this maximum iteration number is reached. If the `\WEIGHT` qualifier is also used, the weight array comes before the iteration number in the command parameter list.

Confidence level of the fit
Update after a fit