possibly serious bug....need someone from HP...

[webmasterpdx]

That's kind of annoying...

z near 0 means?
...could mean is a small integer.
...could mean is infinitely close to zero as in .0000001

It also doesn't say:

Answer will be completely wrong if z isn't infinitely closer to zero.

Also, I don't want it to simplify it.

Hmmm....I'll have to try it with assume(z > 4) and see what happens...when I get a chance.