Units - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Units (/thread-10688.html) Units - Gene222 - 05-07-2018 06:43 PM Is there something that explains how to use "Units" with variables and programs? Can units be used in programs? RE: Units - DrD - 05-07-2018 08:13 PM Aside from the user guide, maybe something in this quick program will be useful? Code: // Provide a real number value for square meters (without units) EXPORT units BEGIN   LOCAL sqmtrs;   INPUT(sqmtrs);   sqmtrs:=sqmtrs * 1_m^2;     RETURN CONVERT(sqmtrs / 1_min, 1_ft^2 / 1_s); END; RE: Units - Gene222 - 05-07-2018 08:35 PM Thank you. RE: Units - Carsen - 05-07-2018 09:13 PM Click the [VARS] key, then the [Home] soft menu and click [Real] in the menu. These are all called Real variables. Numbers with units cannot be stored in them. I don't know why. It's just how the Prime works. You can store numbers with units attached to them if they are User Variables. In your case, you successfully stored 2.3_m^2 into the User Variable 'a'. Other examples of User Variables are MPG, Travel, & bAnAnA. In this case, I don't know why your conversion fails. Probably because the [STO >] command as a shortcut for converting units is extremely picky on how it's entered. Here are two examples that should convert your example successfully. In your problem, type [Shift] [Units] [Tools] [ 1 ], recall the 0.50772... and type [ , ] [ 1 ] [Shift] [ _ ] [Shift] [Units] [Units (soft label)] [ 3 ] [ 5 ] [ / ] [Shift] [Units] [ 5 ] [ 7 ] [ENTER]. Or you can recall the 0.50772... and type [STO >] [Shift] [Units] [ H ] [ 6 ] [Enter].