A linear and a quadratic index are developed as selection criteria for quadratic models of total merit, these models being those in which total merit includes squares and cross-products as well as ...

Lawrence J. Christiano, Solving the Stochastic Growth Model by Linear-Quadratic Approximation and by Value-Function Iteration, Journal of Business & Economic Statistics, Vol. 8, No. 1 (Jan., 1990), pp ...

A good description of Least Squares Fit to Quadratic Data Part of a least squares fit involves solving three equations with three unknowns. Here is a description of using Excel's Solver to do this ...

Revise how to recognise and determine the equation of a quadratic function from its graph for your National 5 maths exam with Bitesize Scotland interactive practice quizzes covering feedback and ...