Use Multi-Touch gestures - Apple Support

Use a Bluetooth mouse or trackpad with your iPad - Apple Support

Magic Trackpad - White Multi-Touch Surface - Apple

Mouse actions and gestures for iPad - Apple Support

Reach the top of the iPhone screen with one hand - Apple Support

iPad User Guide - Apple Support

Magic Mouse - White Multi-Touch Surface - Apple

Use AssistiveTouch on your iPhone, iPad, or iPod touch - Apple Support

Magic Mouse - Black Multi-Touch Surface - Education - Apple

iPad User Guide - Apple Support

How to Use the New Multi-Touch Gestures On Windows 10