2
How to Operate
Mode key
<Example>
1. KEY LAYOUT
≈Read Before Using≈
This operation guide has been written based on the EL-W531, EL-W531G, and
EL-W531H models. Some functions described here are not featured on other models.
In addition, key operations and symbols on the display may differ according to the model.
(SD): Single variable statistic calculation
(LINE): Linear regression calculation
(QUAD): Quadratic regression calculation
(E_EXP):
Eular Exponential regression calculation
(LOG): Logarithmic regression calculation
(POWER):
Power regression calculation
(INV): Inverse regression calculation
(EXP): Exponential regression calculation
2nd function, ALPHA keys
Pressing these keys will enable the
functions written in orange (2nd F)
or green (ALPHA) above the
calculator buttons.
This calculator can operate in three different
modes as follows.
[Normal mode]
•Mode = 0; normal mode
for performing normal
arithmetic and function
calculations.
ON/C, OFF key
Direct function
<Power on>
<Power off>
2nd function
Written in orange
above the ON/C key
[STAT mode]
•Mode = 1; mode for
performing 1- or 2-variable
statistical calculations. To
select the statistical sub-
mode, press the
corresponding number key
after .
[Drill mode]
•Mode = 2; mode for
performing drill
calculations. To select the
drill sub-mode, press the
corresponding number
key after .
(MATH): Math drill
(TABLE): Multiplication table drill
GuideBookEL-W53107.2.52:48PMページ2
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