Before Using The Calculator; Initial Setup - LEXIBOOK SC300i Manual De Instrucciones

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BEFORE USING THE CALCULATOR

Before using this calculator for the first time, remove the static label from the LCD screen
and pull the battery tab located on the battery door. Once the battery tab is removed, the
unit will turn on automatically.
Note: If you are unable to pull the battery tab, open the battery door and try again.
Key Notation Used in this Manual
In this manual, specific notation is used to describe operations made on the calculator.
On the front of the calculator you will see some keys (numbers, operations, functions
etc.) and some writings (functions, memories etc.) above or on the side of the key. How
to use this features will be described as follows:
To use a logarithmic function just press ln key
[In]
x
e
x
[e ]
To use an exponential function (e
In 2ndF
[x]
To use memory calculations by storing a number in X
π memory
Exp
Exp
To specify an exponent just press this key
[π ]
2ndF
To use in a calculation press 2ndF and Exp key.
As shown above, please note that only the second function is indicated following
π
2ndF and not the function or number printed on the key itself .
For example, notation used to compute "three times Pi" is:
Power On and Off
Press to turn the calculator on, and
ON/C 2ndF
Clearing Methods
There are three clearing methods as follows:
: Clears all values including functions and calculation instructions in the
ON/C
calculator (excluding statistical data and memory contents in the normal
mode.)
[CA] : Clears the values in the calculator, excluding independent memory "M" in
2ndF
the normal mode. Clears all statistical data in the statistical mode.
Delete the digit on the right of a number.
:
DEL
In the edit mode, it clears the single digit of a numerical value, functions,
etc. under the cursor.
Calculation Priority Sequence
This calculator will compute a formula by using some priorities. In fact it employs true
algebraic logic to calculate a formula in the following order:
-1
1. Function preceded by their argument (X², X , n!, etc...)
x x
2. Power / Root : y ,
3. Implied multiplication of a memory value (2Y, etc...)
4. Functions followed by their argument (sin, cos, etc...)
5. Implied multiplication of a function (2sin30 etc...)
6. nCr, nPr
3
7. x,÷
8. +, -
9. =, %, M+, M-, →xy and other calculation ending instruction.
Note: -everything included within parentheses receives highest priority.
-When functions with the same priority are used in series, execution is performed
from right to left. For example, e
ln
√
of e
Pending Operations
Operations that cannot be performed immediately due to priority levels or to parentheses
must be set aside temporarily (pending operations). This calculator can hold up to 16
calculations and up to 8 numeric values. (8 values in normal mode and 4 values in
statistics mode.)
x
) press 2ndF and ln key
Mode Selection
This calculator can operate in any of the three operation modes described below. To
select the mode, press
mode.
MODE 1
[π]
2ndF
3 X =
MODE 2
[OFF] to turn it off.
MODE 3
Selection of the Display Notation
This calculator has the following four display notation systems for the display values.
FIXed decimal point system:
A value is displayed with the number of decimal places specified. The FIX
indicator appears.
SCIentific notation system:
A value is displayed using scientific notation. The SCI indicator appears. The
mantissa of the value is displayed with the number of decimal places specified.
ENGineering notation system:
A value is displayed using engineering notation. The ENG indicator appears. The
mantissa of the value is displayed with the number of decimal places specified
and the exponent is set to a multiple of 3 for display.
Floating point system:
A value is displayed without regard for the number of decimal places specified.
None of the FIX, SCI or ENG indicators appears. Scientific notation is used if the
values are not in the range 0.000000001
The display notation is changed by pressing
displayed or after clearing the values in the calculator with
x ln √ 120 will be implemented in the sequence
120
.

INITIAL SETUP

and then the number key corresponding to the desired
MODE
Normal mode:
Used to perform arithmetic operations, substitute arithmetic and
functions.
Statistics mode:
Used to perform statistics calculations. The STAT indicator appears on
top right of the display.
Currency conversion mode.
< | x | < 9999999999.
[FSE] when a calculation result is
2ndF
. Each time
ON/C 2ndF
© Lexibook 2005