How to find zero on plot?

I have the code:

function [out] = iteration(N)

if N<0
    error('less than 0');
end
x(1)=1;
for k=1:N-1
    x(k+1) = exp(-sin(x(k)));
end
fprintf('Iteration given: '), x;

f = @(x) exp(-sin(x)) - x;
fplot(f, [0, pi]);
title('Searching for zero');

xz=fzero(fun,1);

out=x;
end

I need to find and display the zero values using xz=fzero(fun,1). How would I go about this been stuck here for a while now.

Answer 1

[Star Strider]

When I plotted your function, there is only one zero. I would plot it as:

f = @(x) exp(-sin(x)) - x;
xz=fzero(f,1);

figure(1)
fplot(f, [0, pi])
hold on
plot(xz, 0, '+r')
hold off

[Mitul Dattani]

the question wants me to use fzero to find it and show it

[Star Strider]

The code in my Answer does just that!

Run it to see.