www.gusucode.com > Quantum-Behaved Particle Swarm Optimization 工具箱matlab源码 > Quantum-Behaved Particle Swarm Optimization/Quantum-behaved Particle Swarm Optimization/griewankfcn.m
function z = griewankfcn(xx) % Griewank function % Search domain: [-600,600] % Global minimum: f(x) = 0 | x = (0,...,0) % xx = max(-600,min(600,xx)); d = size(xx,2); z = sum(xx.^2,2)/4000 - prod(cos(xx/sqrt(d)),2) + 1; end