Tessero\Optimize\KrylovJacobian

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__construct

__construct(int $innerMaxiter = 20)

setup

setup(array $x, array $F, callable $func): void

update

update(array $x, array $f): void

solve

solve(array $f, float $tol = 0.0): array

Solve J dx = rhs with restarted GMRES to the inexact-Newton tolerance `tol` (scipy passes tol = min(eta, eta*||F||) from the driver as the GMRES rtol).

matvec

matvec(array $v): array

Finite-difference directional derivative J . v.