Using Math Mode; Using " 2Nd " " Alpha " Keys; Making Corrections During Input; Error Position Display Function - Citizen SR-270X College Instruction Manual

CONT : Contrast Adjustment

Using Math Mode

Press [ 2nd ] [ SET UP ] [ 1 ] to enter Math mode. While in math
mode, the values for functions such as
X
2
e , √ , , ,
3
X
in a mathematically written way. By default, this calculator is in Math
mode. See Example 1~2.

Using " 2nd " " ALPHA " Keys

When you press [ 2nd ], the " 2nd " indicator shown on the display
indicates that you will be selecting the second function of the next
key you press. If you press [ 2nd ] by mistake, simply press [ 2nd ]
again to remove the " 2nd " indicator. For Example, [ 2nd ] [ sin
[ = ] calculates the sin
When you press [ ALPHA ], the "A" indicator shown on the display
indicates that you will be selecting the alphabetic function of the next
key you press. If you press [ ALPHA ] by mistake, simply press
[ ALPHA ] again to remove the "
[ ALPHA ] [ A ] to input the "A" on screen.

Making corrections during Input

The vertical blinking cursor " " means the calculator is in insert
mode. The horizontal blinking cursor " " means the calculator is in
overwrite mode.
By default, the calculator is in insert mode. In linear format, you can
press [ 2nd ] [ INS ] to switch between the two modes, whereas in
Math format, you can use only the insert mode.
In insert mode, the character in front of the cursor " " will be deleted
or inserted after you press [ DEL ] or enter a new character
In overwrite mode, the character at the cursor " " will be deleted by
[ DEL ] key or replaced by any new character you enter.
To clear all characters, simply press [ AC ] in either mode.

Error Position Display Function

When a mathematically illegal calculation performed causes an error
and an error message ( See < Error conditions > ) appears, press
[ ] [ ] and then the error position display function will tell you with
the cursor where the error is. In that case, please make necessary
corrections before executing the calculation again. See Example 3.

Replay function

This function stores operations that just have been executed in
COMP mode. After execution is completed, pressing [
key will display the operation executed.
File name : SR100DCollege_English_text_0531_final.doc
version : 10/05/31
−
3 1 y
, , , x ....can be entered and displayed
X X X
–1
of 1 and returns the result, 90.
A " indicator. For Example, press
E – 6
d b
, A , log b, Abs, 10
a
e c
] or [
x
,
–1
] 1
]