1# Problem : Textbook problem used in DAKOTA testing 2# Constrained quartic, 2 continuous variables 3# Solution: x=(0.5, 0.5), obj = .125, c1 = 0, c2 = 0 4# 5 6# continuous variables 7var x1 >= 0.5 <= 5.8 := 0.9; 8var x2 >= -2.9 <= 2.9 := 1.1; 9 10# objective function 11minimize obj: (x1 - 1)^4 + (x2 - 1)^4; 12 13# constraints (current required syntax for DAKOTA/AMPL interface) 14minimize c1: x1^2 - 0.5*x2; 15minimize c2: x2^2 - 0.5*x1; 16 17# required for output of *.row and *.col files 18option auxfiles rc; 19