Obdstar MS80, Руководство пользователя

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You can use calculator to operate algorithm of plus,
subtract, multiply and divide, and function operation of
sin, cos, tan and log.
8 CALENDAR
This function lets you view calendar or create to-do
events.
Enter main menu screen, tap “Calendar”. Swipe up and
down to switch to month;
Tap someday, the followings can be done.
Tap
to refresh, search, and hide control and setting.
9 ALARMS
9.1 Add an alarm
1. Enter main menu, and tap “Alarm”.
2. Tap to add alarms.
3. Set the detailed information of the alarm.
4. Tap
to pack up the alarm to store the setting.
9.2 Delete an alarm
1. Enter main menu, and tap “Alarm”.
2. Tap the desired alarm.
3. Tap
to delete it.