HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 85
Accuracy Indicators
UPC - 082916001456
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Entered Value 2 3/8 14 15/32 54/12 6 18/5 34/12 15/8192 12345678 12345/3 16 3/16384 Internal Value 2.37500000000 14.4687500000 4.50000000000 9.60000000000 2.83333333333 0.00183105469 (Illegal entry) (Illegal entry) Displayed Fraction + + + + + T + S ¤ ¤ Accuracy Indicators The accuracy of a displayed fraction is indicated by the c and d annunciators at the right of the display. The calculator compares the value of the fractional part of the internal 12-digit number with the value of the displayed fraction: If no indicator is lit, the fractional part of the internal 12-digit value exactly matches the value of the displayed fraction. If d is lit, the fractional part of the internal 12-digit value is slightly less than the displayed fraction - the exact numerator is no more than 0.5 below the displayed numerator. If c is lit, the fractional part of the internal 12-digit value is slightly greater than the displayed fraction - the exact numerator is no more than 0.5 above the displayed numerator. This diagram shows how the displayed fraction relates to nearby values - c means the exact numerator is "a little above" the displayed numerator, and d means the exact numerator is "a little below". 0 7/16 0 7/16 0 7/16 6/16 6.5/16 ( 0 . 4 0 625 ) 7/16 ( 0 . 43750 ) 7.5/16 ( 0 . 4 6875 ) 8/16 Fractions 5-3