User Guide

Understandin
g
Optimization
Principles and Options
4
Chapter Overview
This chapter explains optimization concepts and how you can
influence the outcome of an optimization.
The concepts covered in this chapter include: constrained
optimization, function characteristics, convergence and the
effect of starting points, and how the PSpice Optimizer
computes derivatives and scales target values.
Default Options
on page 4-13 describes the options you can set
to control derivative calculations, maximum simulation
iterations, and the Probe display.
Advanced Options
on page 4-17 describes the options you can
set to control cutback, threshold, and the method (least squares/
minimization) that the PSpice Optimizer uses.