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*2. Scientific functions come with the open parenthesis.
Example: sin(, cos(, Pol(, LCM(…. You need to input the
argument and the close parenthesis .
*3. Omit the last close parenthesis before the , , ,
and .
Insert and Overwrite Input mode
In Line mode, you can use INSERT or overwrite mode for
inputting.
- In Insert mode (Default input mode), the cursor is a
vertical flashing line “ ” for inserting a new character.
- In Overwrite mode, press key to switch the cursor
to a flashing horizontal “ _ ” and replace the character at
the current cursor position.
In Mathematics mode, you can only use the Insert mode.
Whenever the display format changes from Line mode to
Mathematics mode, it will automatically switch to the Insert mode.
Deleting and Correcting an Expression
In Insert mode: Move the cursor to the right of the character or
function that needs to be deleted, then press .
In Overwrite mode: Move the cursor under the character or
function being deleted, then press .
Example: 1234567 + 889900
(1) Replace an entry (1234567 1234560)
(2) Deletion (1234567 134567)
Method 1: Line/Maths
mode - Insert mode
Method 2: Line mode -
Overwrite mode
12times
13times
12|34567+889900
1|34567+889900
1234567+889900_
1234567+889900
134567+889900
Method 1: Line/Maths
mode - Insert mode
Mode Setting
Display (input Line only)
Key In operation
Method 2: Line mode -
Overwrite mode