You can enter the values using your keyboard as well as the on-screen keyboard. Read: How to use the Graphing Calculator in Windows 11/10 How do you use a Calculator to convert?

Unlock the full potential of your iPad calculator app with our beginner's guide on how to use math notes on iPad. See how it can automatically calculate math equations and show results as you write.

Here's everything you need to know about the Magic Keyboard shortcuts on the iPad Air and iPad Pro. Learn the most useful tips.

I use a Natural Ergonomic Keyboard 4000 and have always had the mouse and keyboard app installed to disable the stupid keys in the middle of it. Calculator opens in the foreground for me.