Call Back Equation Lib Menu - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: Call Back Equation Lib Menu (/thread-15915.html)

Call Back Equation Lib Menu - CMarangon - 11-18-2020 08:38 AM Hello! (1 minute reading text) I was making some calculus, testing and remember some formulas, so, in HP50, I accessed EQ LIB. My dog was barking loud and I went check what was happening. When I came back I no longer remembered which equation I had used. Is there something like LAST EQ LIB USED, able to return to the beginning of the operation? I stopped here: I need to return to Note: these screenshoots are merely illustrative.