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When Step size is chosen as termination criterion, set the Absolute tolerance and the Relative tolerance to check the convergence of the local wrinkling equations based on the step size in the Newton-Raphson loop. The final tolerance is computed based on the current solution of the local variable and the entered values.
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When Residual is chosen as termination criterion, set the Residual tolerance to check the convergence of the local wrinkling equations based on the residual of each equation.
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When Step size or residual is chosen, it is sufficient that one of the conditions is fulfilled. Setting either the Absolute tolerance and Relative tolerance or the Residual tolerance to zero ignores the corresponding convergence check. An error is returned if all tolerances are set to zero.
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