NEC e540 Guida Utente

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Accessory (M8)
Calculator (M82)
You can perform addition, subtraction, multiplication and division with the calculator. It also has a memory function.
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The calculator can display a result of up to 9 digits. If a calculation results in a number exceeding the maximum, the screen displays error in the 
calculation field.
Calculator Key Assignment
For calculator function, the keys are assigned different functions. The following shows the key assignment:
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Using the % function, you can calculate (100 + x) % of a figure (e.g. 200 + 5% = 210) and (100 - x) % of a figure (e.g. 200 - 5% = 190).
Clock alarm (M83)
This feature enables you to switch the clock alarm function on/off and to set the time, repetition and alarm tone.
Turning the alarm on/off
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Key
Operation
Key
Operation
Addition (+)
Subtraction (–)
Multiplication (
× )
Division (÷)
Equals to (=)
SK2
Memory Store/Memory Addition
SK1
Memory Recall/Memory Cancel (Press twice)
Percent (%)
Inversion (±)
Exit calculator
 
Decimal Point (.)
CLR
Delete digit (if held, all clear)
Clock alarm setting
On/Off
Turns on or off the alarm.
Set time
Sets the time and am/pm (for 12 hour format) at which the alarm will sound.
Set alarm tone
Sets the melody to be played when the alarm occurs. See “Sounds (M62)” on page 59.
Alarm repeat
Selects alarm repeat for once, daily or day of the week.
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You can select more than one day of the week at the same time.
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You can remove the check by highlighting and pressing   again.
Enter alarm text
Sets the message (e.g. Wake up!) which is displayed when the alarm occurs (optional).