Hi,

1) I would like to use the amsmath package.
I am really having trouble with installing it.
What is the easiest way of doing it?
many other packages do I selfdownload, when required.
amsmath doesn't.

2) for example in the binomial distribution formula or pascalsches "dreieck", hope triangular is the english word, the you have this x over m or m under x. Hope you know what I mean.
What is correct latex expression? I have \over, which makes it a fraction.
That is, however, not what I mean

Thanks

sts