Parentheses calculations

Operation inside parentheses are always executed first. The cal- culator can use up to 15 levels of consecutive parentheses in a single calculation. See Example 8.

Percentage calculation

[ 2nd ] [ % ] divides the number in the display by 100. You can use this key sequence to calculate percentages, add-ons, discounts, and percentages ratios. See Example 9~10.

Display formats

This calculator has the following four display notation mode for the display value.

Norm Notation :

This calculator can display up to 10 digits. However, values that exceed this limit are automatically displayed in exponential format. There are two types of exponential display formats :

Norm 1 mode : 10 –2> x , x 10 10

Norm 2 mode : 10 –9> x , x 10 10

(Note) :All of the examples in this manual show calculation results using the Norm 1 mode.

Engineering Notation : ( ENG )

Calculation result is displayed using engineering notation, where the mantissa of the value is displayed with the number of decimal places specified and the exponent is set to a multiple of 3 for display. Fixed Notation : ( FIX )

Calculation result is displayed with the number of decimal places specified.

Scientific Notation : ( SCI )

Calculation result is displayed using scientific notation, where the mantissa of the value is displayed with the number of decimal places specified.

For FIX, SCI notation, the number of decimal places can be set to any value between 0~9. After specifying the number of decimal places, the display value will be rounded to the corresponding number of digits and displayed. When no specification has been made for the number of decimal places or significant digits, Norm 1 and Norm 2 mode can be carried. See Example 11.

Pressing [ ENG ] or [ 2nd ] [ ] will cause the exponent dis- play for the number being displayed to change in multiples of 3. See Example 12.

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Citizen SR-270N manual Parentheses calculations, Percentage calculation, Display formats