My new ABEL_L.gp program

[JmsNxn]

Hey, Ember

What do you think is the most efficient way to assign overflows/underflows a gray value. I'm not sure what the best way is. But I've been thinking:

Code:

iferr(Sexp(z),1E1000)

But I'm not sure how you'd specify if it's an underflow or over flow. I'd like to ideally write something like:

Code:

if Sexp over flows: 1E1000
if Sexp under flows: 1E-1000

Not sure how to do this perfectly though. Is there a way to test the type of error that occurs? I can't seem to see it.

Again, I'm new to pari-gp, haven't coded since the glory days of highschool, and I only ever was proficient in C--which doesn't have these error catching devices. Plus the error catching in Python seems to be vastly different (which I was okay in). Any help is greatly appreciated

Edit: Oh I get it now! There's not an error for underflow so I wrote:

Code:

Abel_N(z,y) = {
    iferr(beta(z,y) + tau2(z,y),E,1E100000,errname(E) == "e_OVERFLOW");
}

If you can think of a more sophisticated way, please let me know.

Regards, James