When an objective function is provided f(w) is the objective function otherwise f(w) = ||F(w)||^2. x is the current step and y is the search direction.
This has no checks on whether the secant method is actually converging.
|-snes_linesearch_max_it <maxit>||- maximum number of iterations, default is 1|
|-snes_linesearch_maxstep <length>||- the algorithm insures that a step length is never longer than this value|
|-snes_linesearch_damping <damping>||- initial step is scaled back by this factor, default is 1.0|
|-snes_linesearch_minlambda <minlambda>||- minimum allowable lambda|
Developer Notes: A better name for this method might be SNESLINESEARCHSECANT, L2 is not descriptive
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages