Citizen SRP-280 Manuel D'instructions page 7

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deletes 1 character to the left of the cursor each time you press [ DEL ].
To replace a character, make the character underlined by using [ ] or [ ]
to move the cursor, and then enter a new entry to replace the character.
To insert a character, move the cursor to the position of the character where
you want to insert, it will be inserted in the front of the character after pressing
[ 2nd ] [ INS ] and entering a new character.
(Note) : The blinking cursor " " means the calculator is in insert mode
On the contrary, the blinking cursor is displayed as "_" and it
means the calculator is in overwrite mode.
To clear all characters, clear all input character by [ CL ] key.
Replay function
• This function stores the latest operation executed. After execution is complete,
pressing [ ] or [ ] key will display the operation from the beginning or the
end. You can continue moving the cursor by [ ] or [ ] to edit it. To delete
a digit, press [ DEL ]. ( or, in overwrite mode, just type over the digit). See
Example 1.
• The replay function can keep input digits up to 228 characters for SRP-280
or 320 characters for SRP-285. After execution is complete or during
entering, you can press either [ ] [ ] to display previous input steps and
edit values or commands for subsequent execution. See Example 2.
(Note) :The replay function isn't cleared even when [ CL ] is pressed or
power is turned off, so contents can be recalled even after [ CL ] is
pressed. However, replay function is cleared when mode or opera-
tion is switched.
Error position display function
• When a mathematically illegal calculation is performed, error position
display function will tell you with the cursor where the error is. Press [ ]
or [ ] to move the cursor and then give it a correct entry. You can also clear
an error by pressing [ CL ] and then re-entered the values and expression
from the beginning. See Example 3.
Memory calculation
• Press [ M+ ] to add a result to running memory. Press [ M– ] to subtract
the value from running memory. To recall the value in running memory,
press [ MRC ]. To clear running memory, press [ MRC ] twice. See
Example 4.
• The calculator has eight memory variables for repeated use : A, B, C, X,
Y, X1, X2, PROG. You can store a real number in variables A, B, C, X, Y, X1,
X2 and an expression in PROG. See Example 5.
* [ P/V RCL ] recalls all variables.
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