HP Prime Spreadsheet - FCC Atomic Packing Factor
This is a simple example workflow for using the HP Prime spreadsheet for people just starting out. What you can't see are some of the keys I am pressing. When you can see an exponent being entered, I just use the ^ key. So a^2 is entered just as it is typed here. Everything you type after ^ wants to remain part of the exponent, so press the right arrow key on a keyboard, or the right navigation button on the prime.
When you press the / key (or use the divide button on the Prime) it will automatically place the fraction in bar form as per the video. Bracket things to keep them on the correct side of the bar.
Working in the virtual calculator is much faster for entering a lot of formulas and data. You can back it up and restore back to your real calculator later to have all your formulas on your physical device. Remember, if you want to keep what is already on your physical calculator you need to back it up first, then restore that onto the virtual calculator to use as your base unit. Don't lose track of which unit has the up-to-date set of things you want to keep.