Image reconstruction is often converted to the nonrestraint extremum of the nonlinear equations.We have deduced a conjugate gradient algorithm from the extremum of norm.
And "normative ethics" is characterized by its peremptoriness, that is, rules are laid down through legislation to set one's goal and norms of behavior.
Those enterprises keep books at planned cost or norm cost in daily accounting shall account for the coit variances and adjust planned cost (or norm cost) into historical cost periodically.