Interface LineSearchOptions

Armijo condition parameter (sufficient decrease). Default: 0.1

Contraction factor for backtracking line search. Step size is multiplied by this factor when condition is not met. Default: 0.5

Initial step size to try. If not provided, the initial step size is automatically scaled by the gradient norm: α₀ = 1.0 / ||∇f(x)|| This prevents steps from being too large when gradients are large, improving convergence performance. If the gradient norm is very small (< 1e-10) or the computed step size is not finite, the default value of 1.0 is used.

Maximum number of line search iterations. Default: 50