HP SmartCalc 300s

Displaying a Long Expression
The display can show up to 14 characters at a time.
Inputting the 15th character causes the expression to
shift to the left. At this time, the < indicator
appears to the left of the expression, indicating that
it runs off the left side of the screen.
Input expression:111] +2222+3333+444
Bl Math
Displayed portion: }42222+3333+444|
Cursor
«When the < indicator is displayed, you can scroll
left and view the hidden part by pressing the (4) key.
This will cause the » indicator to appear to the right
of the expression. At this time, you can use ће ®)
key to scroll back.
Number of Input Characters (Bytes)
You can input up to 99 bytes of data for a single
expression. Basically each key operation uses up
one byte. A function that requires two key
operations to input (like (sirt!)) also uses
only one byte. Note, however, that when you are
inputting functions with Math format, each item you
input uses up more than one byte. For more
information, see “inputting with Math Format”
Normally the input cursor appears as a straight
vertical ( | )ог horizontal( =) flashing line on the
display screen. When there are 10 or fewer bytes of
input remaining in the current expression, the cursor
changes shape to Ш to let you know. If the Ш cursor
appears, terminate the expression at a convenient
point and calculate the result.
llCorrecting an Expression
This section explains how to correct an expression
About the Insert and Overwrite Input Modes
With the insert mode, the displayed characters shift
to the left to make room when you input replaces the
character at the current cursor position. The initial
default input mode is insert. You can change to the
overwrite mode when you need it.
+ The cursor is a vertical flashing line ( | ) when the
insert mode is selected. The cursor is a horizontal
flashing line (= )when the overwrite mode is
selected.
e The initial default for Linear format input is the
insert mode. You can switch to the overwrite mode
by pressing (INS).
+ With Math format, you can only use the insert mode.
Pressing (INS) when the Math format
is selected does not switch to the overwrite mode
See "Incorporating a Value into a Function" for
more information.
• The calculator automatically changes to the insert
mode whenever you change the input/output
format from Linear to Math.
Changing the Character or Function You Just
Input
Example: To correct the expression 369х 13 so it
becomes 369 x 12
CLINE BI
BØK [369x131
BI
DEL 369 х1
Ы
369х 12!
Deleting a Character or Function
Example: To correct the expression 369x x 12 so it
Bl
Insert Mode: (3](6)(9](x](x] 369x x 12
Bl
Co CO 369 x x12
Bl
DEL 369х112
Overwrite Mode: 5
(S) C6) (9) GJ C) CD (2) (369 x 12_
Bl
СФ СФ @ 369x x 12
Bl
DEL] |369x12
Correcting a Calculation
Example: To correct cos(60) so it becomes sin (60)
LINE
Insert
Mode:
(6) (0)
3]
12460)!
Ы
М
GO
C
C
DEL]
оо)
Ё
[0]
SIN)
|
sin(J60)
bl
Overwrite
Mode:
WOA
loso).
[D]
CO
C
@
C9
шо)
-
[D]
SIN)
|sin(60)
Inserting Input into a Calculation
| ains: becomes 3693612 Always use the insert mode for this operation. Use
as you are inputting it. The procedure you should ;
use depends on whether you have insert or overwrite LINE ек . ДЕ и s id ui
P y you want to insert new input, and then input what
selected as the input mode. you want.
T3 14 Т5