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Recurring Decimal Conversion (Recurring Decimal Calculations)

Your calculator lets you convert a calculation result to recurring decimal format in the Calculate app when possible. It also makes it possible for you to input a recurring decimal value and perform a calculation.

Converting a Calculation Result to a Recurring Decimal Value

To convert a calculation result to a recurring decimal value, press , and then select [Recurring Decimal] from the FORMAT menu that appears. For the actual operation, see "Recurring Decimal Calculation Example".

Inputting a Recurring Decimal

To input a recurring decimal value, use the CATALOG menu item shown below.
– [Numeric Calc] > [Recurring Decimal]For the actual operation, see "Recurring Decimal Calculation Example".


Important!

If the value starts with an integer part (like: 12.3123123...), do not include the integer part when inputting the period (12.312).

Recurring decimal input is possible only when MathI/MathO or MathI/DecimalO is selected for Input/Output on the SETTINGS menu.

Recurring Decimal Calculation Example

To calculate 3.021 + 0.312 (Input/Output: MathI/MathO)

1. Use the following operation to input the calculation expression.

  • 3 – [Numeric Calc] >
    [Recurring Decimal] 021
  • 0 – [Numeric Calc] >
    [Recurring Decimal] 312

This displays the calculation result as a fraction.


2. Press , and then select [Recurring Decimal].

This changes the result format to recurring decimal.

To return the calculation result to a fraction, select – [Standard].


Note

Only a calculation result that satisfies the conditions below can be displayed as a recurring decimal.

- The total number of digits used in the mixed fraction (including integer, numerator, denominator, and separator symbol) must be no more than 10.

- The data size of the value when displayed as a recurring decimal must be no larger than 99 bytes, calculated as: [number of digits (1 byte each)] + [1 byte for the decimal point] + [3 bytes for recurring decimal management code]. For example, the data size of 0.123 would be 4 bytes for digits, 1 byte for the decimal point, and 3 bytes for recurring decimal management code, for a total of 8 bytes.

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