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I have an HP12C, Somehow I have hit a wrong button and can't fix my calculator. The problem: instead of having a decimel point after the first digit, I have a comma (e.g., it looks like this: 0,0000). And I can't it get back to "normal." Does anyone know what I can do to "reset" my calculator back to normal. Thank you.

Press *and hold* the . button (decimal point) while the calculator is OFF.

Press ON

Let go of .


Turn it on, while holding down the "." key. That toggles the seperator.