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1.12 Branins's rcos function Contents1.14 Goldstein-Price's function

1 Parametric Optimization


1.13 Easom's function

The Easom function [Eas90] is a unimodal test function, where the global minimum has a small area relative to the search space. The function was inverted for minimization.

function definition
fEaso(x1,x2)=-cos(x1)·cos(x2)·exp(-((x1-pi)^2+(x2-pi)^2));
-100<=x(i)<=100, i=1:2
.

global minimum
f(x1,x2)=-1; (x1,x2)=(pi,pi).

This function is implemented in objeaso.
Easom's function, global Easom's function, local


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