If you tap the equal sign directly after the operator, the calculator performs the
operation on the initial number that you tapped. For example, tap ‘6 x =’. The
displayed result is 36.
If you tap more than one operator in a row, only the last operator is kept. For
example, tap ‘6 x + 4 =’. The result is 10. The ‘+’ replaces the ‘x’.
If you tap the equal sign repeatedly in succession, it repeats the pre
vious calculation.
For example, tap ’3 + 4 = =’ The initial result is 7. Then, 4 is added to 7 equaling
11.
USING PARENTHESES IN EXPRESSIONS
Normally the calculator respects the standard order of operations in an extended
expression. However, you can use parentheses
in an expression to control
the sequence of execution. You can nest parentheses to further control of the
calculation sequence.
Note:
Each time you tap a close parenthesis, the calculator calculates
and shows the result of the enclosed expression.
USING CLEAR ENTRY (CE) AND CLEAR (C) KEYS
•
Tap the CE key to clear the current entry.
•
Tap the C key to clear an entire expression, including any pending operator.
Neither key clears values in memory.
USING MEMORY KEYS
You can store numbers in the memory register. When a value is present in memory,
the smartpen screen shows an M indicator.
When the value in memory changes, the indicator on your smartpen screen blinks.
When the value in memory is zero, the memory indicator disappears.
Adds the currently displayed value to the value in the memory register.
esug6.0.4
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ECHO SMARTPEN USER GUIDE
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