3
votes
1answer
106 views

How to properly display a product within a fraction?

I have product inside a fraction, like this: \[ \phi_n(t)=\frac{t^n-1}{\prod_{\substack{ d \mid n,\\ d<n.}} \phi_d(t)} \] And that places the "limits" of the product on it's side, not ...
6
votes
1answer
334 views

how to place text on fraction for accounting formulas?

Sorry for the bad grammar. English is not my native language. I want to have text on a fraction type line to show up in an accounting formula, here's an example of what I want: So, I've tried ...