Basic Definitions; The Keys; General Keys; Memory Keys - Citizen SRP-145T User Manual

BASIC DEFINITIONS

The Keys

To keep your calculator as compact as possible, some keys have
more than one function. You can change the function of a key by
pressing another key first, or by setting the calculator in a certain
mode.
The following pages give you more detailed explanation of each key's
use and function.
2ndF
[SHIFT] Second Function Select Key
Some keys have a second function inscribed above them (for example,
1/x is above x ). To perform this second function, press [SHIFT]. "2F"
2
appears in the display. Then press the key.
Example: To calculate the reciprocal of 5, press [5] [SHIFT] [1/x]. The
display shows 0.2. In this manual, we refer to the key by the desired
function. So, the example would be shown as [5] [SHIFT] [1/x].

General Keys

[0] - [9] [ • ] Data Entry Keys
Press these keys in their logical sequence to enter numbers.
÷
[+], [−], [x], [ ], [=] Basic Calculation Keys
Press these keys in their logical sequence for addition, subtraction,
multiplication, division, and to display answers.
[ON/C] Power ON/Clear Key
Press [ON/C] to turn on the calculator and to clear everything except
the contents of the memory, constant memory (Ka, Kb), and program
memory. It also overrides the auto power-off function.
[CE] Clear Entry Key
Press [CE] to erase incorrect entries.
[+/−] Sign Change Key
Press [+/−] to change the displayed number from positive to negative
or from negative to positive. If you press [+/−] after pressing [EXP], the
sign of the exponent changes.

Memory Keys

[MR] Memory Recall Key
Press [MR] to display the contents of the memory.
[X M] Memory Store Key
Press [X M] to store the displayed value into memory. Any previous
value in memory is automatically erased.
[M+] Memory Plus Key
Press [M+] to total the current calculation and add the result to the
value already in memory.
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