How do I get a string to change everytime my xMax value changes?

Hi guys, I want the string '47.4' to change everytime the xMax value changes,

    x=linspace(0, 80, 200);
y4=@(x) (0.02049/0.4)*x-(0.66*60./(1+(1.331./(sqrt(0.0631*x./(83.17-x))).^3)));
f = y4(x);
[y4Max, iMax] = max(f)
xMax = x(iMax)
y_lim = ylim;
line([xMax xMax],[y_lim(1) y4Max])
text(xMax,y4Max + 0.1,'47.4','HorizontalAlignment', 'center', 'FontSize', 15)

the string '47.4' is actually the value of xMax, but I want it to change everytime xMax changes.

Thanks a lot!

Answer 1

[Vandana Rajan]

Hi,

You can try

>> text(xMax,y4Max + 0.1,num2str(xMax),'HorizontalAlignment', 'center', 'FontSize', 15)

[Mo_B]

works perfect! thanks a lot