Question

Solve these nonlinear equations with fsolve function in Matlab. Verify your result with ezplot function. f(x7,x)= x; - 4x} - x,x2 fz(x, , x)= 2x, – x3 – 3x,X,

Answer 1

Save the file as .m extension.

Code:

function F = func(x)

F = [x(1) - 4*x(1)^2 - x(1)*x(2);

2*x(2) - x(2)^2 - 3*x(1)*x(2)];
end

And than open command line and type the following:

x0 = [-5 -5];

x = fsolve(@func,x0);

ezplot('x(1) - 4*x(1)^2 - x(1)*x(2)');

ezplot('2*x(2) - x(2)^2 - 3*x(1)*x(2)');

Results:

x(1)- 4 x(1)2 - x(1) X(2) -203 -203.5 -204

2 x(2) - x2 - 3 x(1) x2) -168.5 | -169.5 -17 -170.51 171 마 NE