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E – 12, Percentage calculation, Continuous calculation function – CITIZEN SRP-285N User Manual

Page 13: Answer function, Logarithm and antilogarithm, Fraction calculation

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E – 12

File name : CBM_SR285,A_HDBSR285T19_English.doc

version : 2010/04/26

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A multiplication sign " x " occurring immediately before an open
parenthesis can omitted. See Example 17.

(Note) : The calculator can auto-correct abbreviated

multiplication in front of all functions, except memory
variables, left parenthesis, type B functions.

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Henceforth, abbreviated type will not be used in this manual.
See Example 18.

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The correct result cannot be derived by entering [ ( ] 2 [ + ] 3 [ ) ]
[ EXP ] 2. Be sure to enter [ x ] 1 between the [ ) ] and [ EXP ] in
the below example. See Example 19.

„ Percentage Calculation

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[ 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 20~21.

„ Continuous calculation function

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The calculator enables you to repeat the last operation executed
by pressing [

] key for further calculation. See Example

22.

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Even if calculations are concluded with the [

] key, the

result obtained can be used for further calculation. See Example
23.

„ Answer Function

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Answer function stores the most recently calculated result. It is
retained even after the power is turned off. Once a numeric value
or numeric expression is entered and [

] is pressed, the

result is stored by this function. See Example 24.

(Note) : Even if execution of a calculation results in an error,

however, Answer memory retains its current value.

„ Logarithm And Antilogarithm

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The calculator can calculate common and natural logarithms and
anti-logarithms using [ log ], [ ln ], [ 2nd ] [ 10

x

], and [ 2nd ]

[ e

x

]. See Example 25~27.

„ Fraction Calculation

Fraction value display is as follow :

5 / 12

Display of

12

5

56 ∪ 5 /12

Display of 56

12

5