Assume I wish to refer to the *i*-th object, or the *n*-th function out of some set, where i and n are letters and not numbers (as in "Multiply the `$j$th`

row with the `$i$th`

column and store the result in the $k$th memory cell, where `$k=i+j$`

")

How do you suggest to write it?

`$n$th`

is just confusing, `$n$-th`

seems weird, and `$n^{\text{th}}$`

, which is my current choice, is (pardon me) simply ugly.

Any suggestions?

## Best Answer

In my experience

`$n$th`

is most widely used (like here). Personally I don't think it's ugly compared to the other two options and I think it's quite readable.