test_casadi_ipopt.py

#!/usr/bin/env python3
from casadi import *

if __name__ == "__main__":
    x = SX.sym('x'); y = SX.sym('y'); z = SX.sym('z')
    nlp = {'x':vertcat(x,y,z), 'f':x**2+100*z**2, 'g':z+(1-x)**2-y}
    S = nlpsol('S', 'ipopt', nlp)
    print(S)
    r = S(x0=[2.5,3.0,0.75],\
        lbg=0, ubg=0)
    x_opt = r['x']
    print('x_opt: ', x_opt)
    print("Congratulations! You passed the test and IPOPT works fine with CasADi!")