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Shared constants for generic backtracking and ridge-escalation policies.
Constantsยง
- ARMIJO_
C1 - Armijo sufficient-decrease parameter
c1. - ARMIJO_
ROUNDOFF_ EPS_ MULTIPLE - Round-off cushion in units of
f64::EPSILON. - BACKTRACK_
CONTRACTION - Multiplicative step factor applied to a rejected trial.
- MAX_
BACKTRACK_ HALVINGS - Default cap on backtracking trials.
- RIDGE_
GROWTH - Geometric growth factor for ridge / Levenberg-Marquardt escalation.