x0=[ 1.3 107？ 1.332 19 ? 0.24839];
[x，fval] = fminunc(@(x) myfunc(x)，x0)
Running result
x = 1.323？ 1.3393 ? 0.24964
fval =？ - 13.958
Main contents of myfunc(x) function:
What if? x 1+2*x 1^2+x2+2*x2^2+x3>； 10 | x 1+x 1^2+x2+x2^2-x3>； 50 | 2*x 1+x 1^2+2*x2+x3>； 40 | x 1^2+x3==2 | x 1+2 * x2 & lt； 1
f = inf
other
=-(2*x 1+3*x 1^2+3*x2+x2^2+x3)；
end
This topic examines the related knowledge of inequality, enumerates inequality equations, solves inequality equations and the properties of inequality. Cultivate the ability