numerical double integral from single numbers

Hi, I need to calculate numerical double integral (like quad2d) from single numbers(like 10),in the process of my code. but i face matlab Errors. Please help me.

[Metin]

hi, what kind of error did you get, could you write?

[Roger Stafford]

By "... from single numbers(like 10)..." do you mean your integrand is to be a constant value? What errors do you face?

[the cyclist]

Guessing they mean they are doing a numerical integration, rather than an analytical one, but difficult to say.

esmaeel, please post the smallest possible section of code that we can run ourselves, so that we can see the errors.