117ToolsCalculatorLearn to perform mathematical calculations directly on yourdevice like a typical hand-held or desktop calculator.1 Open the application list and select Calculator.2 Use the keys that correspond to a calculator to perform abasic or scientific calculation.DownloadsLearn to manage logs of files you have downloaded from theweb.1 Open the application list and select Downloads.2 Select a download category.3 To open a downloaded file, select the log.ā To delete a log, check the check box, and then select .ā To share a downloaded file with others, check the checkbox, and then select .DropboxLearn to use the Dropbox cloud storage service to save andshare your files with others. When you save files to yourDropbox folder, your device automatically synchronizes withthe web server and any other PCs linked to your Dropboxaccount.If you are a new user, create an account.