How to indicate the maximum value in the plotted curve in matlab?

How to indicate the maximum value of the curve in a plotted curve in matlab

Answer 1

[Matt J]

For example;

x=-2:2;
y=-x.^2+2;

[~,i]=max(y);

plot(x,y,x(i),y(i),'o'); legend('Plot','Maximum Point'); axis padded