1Blurb:: 2False convergence tolerance 3Description:: 4\c false_conv_tol (NL2SOL's \c xftol) is the 5false-convergence tolerance (stop with a suspicion of discontinuity 6when a more favorable stopping test is not satisfied and a step of 7scaled length at most \c false_conv_tol is not accepted) 8 9The internal default is a function of machine epsilon 10(as limited by \c function_precision). The default is selected with a value of -1. 11 12Topics:: 13Examples:: 14Theory:: 15Faq:: 16See_Also:: 17