![background image](http://html1.mh-extra.com/html/napoli/dvd-4358-gps/dvd-4358-gps_user-manual_3273368040.webp)
Calculator and Calendar
1. Calculator
Touch CAL icon in source menu to pop up calculator interface as follows:
: to clear the number in the memory.
: to display the number in the memory as inputting a number during arithmetic
operation.
: to store the current displaying number in the memory and display M in the left
side of the display frame.
: to make the current displaying number and the number in the memory plused
and store it in the memory.
: to change the current displaying number into positive or negative one.
: to clear the current displaying number.
: to reset the calculator to zero.
: to clear the last input digit.
: to exit to source menu.
* The memory can store only the last number.
2. Calendar
Touch DAY icon in source menu to pop up calendar interface as follows:
: to select the desired date.
: to select the desired month.
: to select the desired year.
: to exit to source menu.
Calculator interface
Calendar interface
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Operation of GPS module