Calculator; Calendar - HTC One M9 User Manual

Hangouts Operations
Ending a Chat: In the Hangouts window, flick the chat from left to right.
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Ending a Video Chat: In the video chat window, tap
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Disabling Chat History: If you don't want to keep chat history, in the chat window, tap > Turn
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history off.
Delete Chat History: To delete all your chat history, in the chat window, tap > Delete >
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DELETE.
Note: You can use Hangouts as your phone's default messaging app, or as a standalone IM app. If
you set Hangouts as the default messaging app, the Messages app will be disabled. For more
information, see More Wireless & Network Settings.

Calculator

Your phone's convenient built-in calculator lets you perform basic mathematical equations.
1. Tap
> >
2. Enter numbers or formulas using the onscreen keys.
3. Do any of the following:
Turn your phone sideways to switch to a scientific calculator, and then enter numbers or
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formulas using the onscreen keys. The scientific calculator lets you perform more complex
calculations with square root, logarithmic, and trigonometric functions.
Tap DEL to remove one digit at a time. Touch and hold DEL to delete the entire number.
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4. Tap f or the result.

Calendar

Use Calendar to create and manage events, meetings, and appointments. Your Calendar helps
organize your time and reminds you of important events. Depending on your synchronization
settings, your phone's Calendar stays in sync with your Calendar on the Web, Exchange ActiveSync
calendar, Google Calendar, and Outlook calendar.
In order to sync with your Google calendar, you must sign in to your Google Account on your phone.
See Google Account.
Useful Features
Calculator.
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