Question on how to calculate integral

Hello everybody,

I have a question on how to calculate integral of a matrix in Matlab. I have the following code and wants to calculate the integral of A. Do I calculate the integral (area below the curve) correct?

I wanted to calculate the integral from -infinity to +infinity and also -infinity to T....

dt=0.025; %--time step

T=(-30:dt:30)';%(-5:dt:5)'; %-- dimensionless time vector

t=T;

nt=length(T);

T2=9.1093;

A=(exp((-T.^2)/(2*((T2).^2))));

Integral=abs(sum(A))*dt

Thank you!

Answer 1

[Walter Roberson]

Not exactly: when you do a finite range, you need a correction at the edges. trapz() does the edge correction.

For infinite intervals you should construct an anonymous function and use integral()