HP 35s HP 35s scientific calculator - User Guide - Page 101
Fractions in Equations
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Example: Suppose you have a 56 3/4-inch space that you want to divide into six equal sections. How wide is each section, assuming you can conveniently measure 1/16- inch increments? What's the cumulative roundoff error? Keys: D D Display Description: Sets Flag 8 Sets up fraction format for 1/16- inch increments. (Flags 8 and 9 should be the same as for the previous example.) Stores the distance in D. The sections are a bit wider than 9 7/16 inches. Rounds the width to this value. Width of six sections. The cumulative round off error. Clears flag 8. Turns off Fraction-display mode. Fractions in Equations You can use a fraction in an equation. When an equation is displayed, all numerical values in the equation are shown in their entered form. Also, fractiondisplay mode is available for operations involving equations. When you're evaluating an equation and you're prompted for variable values, you may enter fractions - values are displayed using the current display format. See chapter 6 for information about working with equations. Fractions 5-9