R/branin.R

branin <- function(x) {
  x1 <- x[1]*15-5   
  x2 <- x[2]*15     
  (x2 - 5/(4*pi^2)*(x1^2) + 5/pi*x1 - 6)^2 + 10*(1 - 1/(8*pi))*cos(x1) + 10
}
IRSN/DiceKriging documentation built on May 8, 2019, 1:25 p.m.