[WP 34s] Another noobie question about programming

[Marcio]

Dear all, thank you for your patience in advance.

Please, let me ask you a couple more question about the 34s:

I would like to integrate a function like \(f(x) = \frac{1}{x+a}\) where \(a\) is as large as 1000. Not knowing exactly how things worked in previous HP calcs, I naively typed 1500 for \(a\) directly into the program, well, you know what happened.
The manual says that integers (say \(n\)) can be keyed in using the # symbol, however, it also states that \(0\leqslant n \leqslant 255\). Now comes the noobie question:

Do I have to modify \(n\) by assigning, for example, 250 to it and multiply by 6 to get 1500? Or I am missing something here?

Thank you

Marcio

EDIT: Alternatively, I could also assign a register to \(a\) before using it in the program, in case \(a\) is a prime number and greater than 255.