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jfnk tangent test

Module: core

Category: task

Type string: "jfnk tangent test"

Parameters

This feature has no parameters.

Description

The jfnk tangent test runs a test on the tangent produced by the JFNK linear solver. The JFNK linear solver is an iterative solver that aims to solve the nonlinear Newton problem without ever evaluating the stiffness matrix explicitly.