The new HP Prime graphing calculator has a somewhat steep learning curve. If you are thinking about purchasing an HP Prime or recently acquired one, I would suggest you spend a little time with the following guides available from HP: HP Prime User Guides
Short HP Prime modules:
Here are short modules which introduce HP Prime applications or functions. In each, I'll provide a few worked examples, keystrokes and HP Prime screenshots. You may want to browse these modules in the order listed as I give fewer keystroke hints later on. Feel free to ask me questions through link at bottom.
Solve() function solve(), substitute()
Define User Functions, Function App User functions, Function App, copy/paste
Spreadsheet App, CAS Calculus Calculus performed in Spreadsheet App
Statistics 2Var App: Manual and MAKE Data 2Var Statistics app manually and using MAKE()
Statistics 2Var App: MAKELIST, L1 and Spreadsheets More ways to create, analyze data in Stats 2Var App
New - curve fitting, analysis comparing HP Prime to TI36X-Pro
HP Prime & TI36X Pro: Part I - cubic curve-fitting
HP Prime & TI36X Pro: Part II - cubic curve analysis
Coming soon - handy things the Spreadsheet App can do...