how to get an upside down question mark on mac
Inverted question and exclamation marks On the macOS platform (or when using the "US International"/us-intl keyboard layout on Windows and Linux), "¡" and "¿" can be entered by pressing Alt/⌥ Option+1 and ⇧ Shift+Alt/⌥ Option+/ respectively. With a compose key, for example, <LEFT SHIFT> + <RIGHT CTRL>, they can be entered by pressing the compose key and ! or ? twice. And for AZERTY keyboards, the shortcut is: fn + alt + ! (number 8).
Bracket Forms include round (also called "parentheses"), square, curly (also called "braces"), and angle brackets (also called "chevrons"); and various other pairs of symbols.
macOS macOS can be updated using the Mac App Store application[153] or the softwareupdate command line utility. Until OS X 10.8 Mountain Lion, a separate Software Update application performed this functionality. In Mountain Lion and later, this was merged into the Mac App Store application, although the underlying update mechanism remains unchanged and is fundamentally different than the download mechanism used when purchasing an App Store application.
Exponentiation Any nonzero number raised to the 0 power is 1:[11]