The GA Playground: Schwefel's (Sine Root) Function

A widely used multimodal test function

Formulation:

Minimize:

f(x) = 418.9829*n + sum(-x(i)*sin(sqrt(abs(x(i))))

-500 <= x(i) <= 500

global minimum

f(x) = 0

x(i) = 420.9687, i=1:n

Problem Specific Notes:

Instructions:

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Ariel Dolan
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Fax. 972-3-5752173

Last modified on: Tuesday, 30 June, 1998.