Документация

function [x fval exitflag] = fullexample
x0 = [1; 4; 5; 2; 5];
lb = [-Inf; -Inf;  0; -Inf;   1];
ub = [ Inf;  Inf; 20; Inf; Inf];
Aeq = [1 -0.3 0 0 0];
beq = 0;
A = [0 0  0 -1  0.1
     0 0  0  1 -0.5
     0 0 -1  0  0.9];
b = [0; 0; 0];
opts = optimoptions(@fmincon,'Algorithm','sqp');
     
[x,fval,exitflag]=fmincon(@myobj,x0,A,b,Aeq,beq,lb,ub,...
                                  @myconstr,opts)

%---------------------------------------------------------
function f = myobj(x)

f = 6*x(2)*x(5) + 7*x(1)*x(3) + 3*x(2)^2;

%---------------------------------------------------------
function [c, ceq] = myconstr(x)

c = [x(1) - 0.2*x(2)*x(5) - 71
     0.9*x(3) - x(4)^2 - 67];
ceq = 3*x(2)^2*x(5) + 3*x(1)^2*x(3) - 20.875;

[x fval exitflag] = fullexample;

Local minimum found that satisfies the constraints.

Optimization completed because the objective function is non-decreasing in 
feasible directions, to within the value of the optimality tolerance,
and constraints are satisfied to within the value of the constraint tolerance.

x =
    0.6114
    2.0380
    1.3948
    0.1572
    1.5498

fval =
   37.3806

exitflag =
     1