Hi all!

A while back, I was lurking on these forums and I came across this thread:

Symbolic Integration

I attempted to integrate dx /(1+x^16) like Mr. von Cube did with his NSpire. However, I used my 50g.

I am almost POSITIVE that I got an answer (Lots of ln and atan terms.)

However, I tried again recently, and I got an INTVX (or RISCH) error:

Unable to factor.

This really isn't terribly important; it just bothers me!

Any ideas as to why it may have worked back then but doesn't now?

Thanks,

Austin W.