Mest Linear vs Nonlinear 16888 ES077 A constraint is a linear function of the design variables if each design variable appears only to the first power with constant coefficients multiplying it 6x,, <10 is linear in x 6X1-X 2 2x6< 10 is nonlinear in x 6X1-sin(x2 )-2X3 10 is nonlinear in x C Massachusetts Institute of Technology - Prof de Weck and Prof Willcox Engineering Systems Division and Dept of Aeronautics and Astronautics9 © Massachusetts Institute of Technology - Prof. de Weck and Prof. Willcox Engineering Systems Division and Dept. of Aeronautics and Astronautics Linear vs. Nonlinear Linear vs. Nonlinear A constraint is a linear function of the design variables if each design variable appears only to the first power with constant coefficients multiplying it. 6 21 12 3 xx x   0 is linear in x 0 is nonlinear in x 2 6 21 12 3 xx x   is nonlinear in x 6 sin( ) 2 10 1 23 x xx