Question

请问如何用matlab求这个函数的最大值?

Answer 1

a=12*10^7/(0.15^3);b=12*10^7/(0.15^3);

x=0:0.1:1;

y=0:0.01:0.15;

[X,Y]=meshgrid(x,y);

Z=-b*Y-a*X.*Y;

surf(X,Y,Z),grid on;

max(max(Z));

Z