Integration of a function

Hi

I want to solve the integral of (delta/A^2) between 0 and 0.9999999.

delta and A^2 are double workspace variables I have saved as txt files.

My Script so far for this is

    load ASqr.txt
    load delta.txt
    realZeros = (1/pi).*(int('delta./ASqr',0,0.9999999))
    format long e
    realZeros

When I run the script in the command window the following error is being thrown up

    Undefined function 'int' for input arguments of type 'double'

Which I am unsure about, would anyone be able to guide me on where I am going wrong, as solving integrals in matlab is new to me. Thank you in advanced.

[Salaheddin Hosseinzadeh]

I'm not sure wha't is the function you want to take the inetgral from. I guess it's Dirac or as you said delta, if you want to perform a symbolic inegral you have to define a symbol first

syms x
y=int(dirac(x))
subs(y,.999)-subs(y,0)

Which gives you 1 anyway! Hope that wouls solve the problem! Good luck!