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Rounding Function (Rnd)

Using the Rnd function causes decimal fraction values of the argument to be rounded in accordance with the current Number Format setting.

Number Format: Norm 1 or Norm 2

The argument is rounded off to 10 digits.

Number Format: Fix or Sci

The argument is rounded off to the specified digit.
When Fix 3 is the Number Format setting, for example, the result of 10 ÷ 3 is displayed as 3.333, while the calculator maintains a value of 3.33333333333333 (15 digits) internally for calculation. In the case of Rnd(10÷3) = 3.333 (with Fix 3), both the displayed value and the calculator’s internal value become 3.333. Because of this a series of calculations will produce different results depending on whether Rnd is used (Rnd(10÷3) × 3 = 9.999) or not used (10 ÷ 3 × 3 = 10.000).


Example: To perform the following calculation when Fix 3 is selected for the number of display digits: 200 ÷ 7 × 14 = 400 (MathI/DecimalO)

  • 200714

(Calculation is performed internally using 15 digits.)

  • 2007
  • 14

The following performs the same calculation with rounding.

  • 2007

(Round the value to the specified number of digits.)

  • (Rnd)

(Check rounded result.)

  • 14
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