How to power by an expression in LabVIEW

Question

I just started today to learn LabVIEW to complete a specific assignment. I need to write the equation y= (1+ r/n)^(nt+1) but do not know how to write (nt+1) as an index. Please help

Answer 1

Here's how I would do it in LabVIEW, but note there is no error checking, or input checking.