# Differentiating Variables with Subscripts on the HP-50g

1. Jul 1, 2010

### Pianoman14

Hi,

First: Hello, Physics Forums (this is my first post)!

I am trying to enter the Distance Forumula:

m = sqrt([x2-x1] + [x2-x1])

into the Equation Solver on the HP-50g. However, I cannot find a way to subscript variables. Of course, I could just enter,

m= sqrt ([A2-B1] + [C2-D1])

but that makes things a little confusing. Is there a way to subscript variables, and have them act independently?

Thanks,
Pianoman

Last edited: Jul 1, 2010
2. Jul 26, 2010

### rs1n

You can simply use x1, x2, x3, and x4 -- the calculator will treat them as separate variables.

3. Aug 18, 2010

Thank you!