integration in matlab

Here is some simple code. If you are using this for a school project or something, I would recommend using trapezoidal rule or something more sophisticated. Anyway, this code performs the integration and does not get an error on my computer.

% Define Integration Parameters
N = 1000;
x1 = -10;
x2 = 10;

% Compute Function
x = linspace(x1,x2,N);
f = sin(x)./cosh(x);

% Compute Integral
dx = (x2-x1)/N;
fi = sum(f)*dx;

% Show Results
plot(x,f);
disp(['Integral from x1 to x2 is ' num2str(fi)]);

Hi,thanks for the reply..........but I have solved this problem through Numerical methods by approximating function

give the expression like this

(sin(x)/cosh(x));

How about searching mfun?