HP hp39gPlus User Guide - Page 35
Using fractions
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Accessing the display history Pressing enables the highlight bar in the display history. While the highlight bar is active, the following menu and keyboard keys are very useful: Key , CLEAR Function Scrolls through the display history. Copies the highlighted expression to the position of the cursor in the edit line. Displays the current expression in standard mathematical form. Deletes the highlighted expression from the display history, unless there is a cursor in the edit line. Clears all lines of display history and the edit line. Clearing the display history It's a good habit to clear the display history ( CLEAR) whenever you have finished working in HOME. It saves calculator memory to clear the display history. Remember that all your previous inputs and results are saved until you clear them. Using fractions To work with fractions in HOME, you set the number format to Fractions, as follows: Setting Fraction mode 1. In HOME, open the HOME MODES input form. MODES Getting started 1-25
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