false_conv_tol
False convergence tolerance
Specification
Alias: None
Arguments: REAL
Default: -1. (use NL2SOL internal default)
Description
false_conv_tol
(NL2SOL’s xftol
) is the
false-convergence tolerance (stop with a suspicion of discontinuity
when a more favorable stopping test is not satisfied and a step of
scaled length at most false_conv_tol
is not accepted)
The internal default is a function of machine epsilon
(as limited by function_precision
). The default is selected with a value of -1.