Watch Mr Smith explain more about writing to explain. Follow what he says carefully, and have a go at the tasks he gives you. Explanation texts often tell you about the parts of a process, usually ...

You can change the sound of a text message on your iPhone by going to Sounds & Haptics in Settings. You can set custom text tones for individual contacts by editing that contact's settings in the ...

This file provides functions and modules that construct shapes from a list of cross sections. In the case of skin() you specify each cross sectional shape yourself, and the number of points can vary.