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 P: 20 Hi, First: Hello, Physics Forums (this is my first post)! Now to business. 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