ATAN function - Microsoft Support
Returns the arctangent, or inverse tangent, of a number. The arctangent is the angle whose tangent is number. The returned angle is given in radians in the range -pi/2 to pi/2. To express the arctangent in degrees, multiply the result by 180/PI( ) or use the DEGREES function.
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Using tags in Microsoft Teams - Microsoft Support
@mention a tag in a channel. In a channel conversation, simply @mention a tag (type @ and the tag name) in your message and select the tag from the list.The tag will appear just like any @mention, and the people associated with the tag will be notified.
Applies To:
Microsoft Teams
Add, change, hide, or delete comments in a presentation
Add a comment. Select the object or slide you want to comment on. Select Review > New Comment.Or select New if the Comments pane is open. You can also add a comment by selecting Insert > Comment.You can also use either of these keyboard shortcuts.
Applies To:
PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint for the web, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016, PowerPoint for iPad, PowerPoint for iPhone, PowerPoint for Android tablets, PowerPoint for Android phones, PowerPoint Mobile
Language Accessory Pack for Microsoft 365 - Microsoft Support
Learn how to download, install, and configure Language Accessory Packs for Microsoft 365 for additional display, help, and proofing tools.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin
Video: Share your notes with others - Microsoft Support
Try it! Share a page or your entire notebook to collaborate with others. Share a page or notebook. Select the page you want to share.
Applies To:
OneNote for Windows 10
工作或学校帐户双重验证的常见问题 - Microsoft 支持
此内容可帮助你使用工作或学校帐户，即组织 (dritan@contoso.com) 等提供给你的帐户。 如果在个人 Microsoft 帐户（即你为自己设置 (的帐户（例如，danielle@outlook.com) ）上出现双重验证问题，请参阅打开或关闭 Microsoft 帐户的双重验证。. 我没有随身携带移动设备
Microsoft Edge 說明與學習
使用新的 Bing 內建功能體驗 AI 支援的瀏覽. 在 Microsoft Edge 中取得完整的解答、摘要資訊，共同尋找靈感。 按一下下方的 [立即試用]，即可開始使用 AI 支援的 Copilot 網頁版。