6D Shifted and rotated weighted sphere test function.
Usage
sphere6(x)
Value
A real number equal to the sphere6 function values at x
Arguments
x
a 6-dimensional vector specifying the location where the function
is to be evaluated.
Author
Tobias Wagner
Victor Picheny
David Ginsbourger
Details
The 6D Shifted and rotated weighted sphere (standardized version) function
is here defined over the domain [0,1]^6. It has 1 global minimizer :
x* = c(1,0.8,0.6,0.4,0.2,0), ), with minimum f(x*) = -1.941389. It has no
further local minima.