# Entering Numbers

To insert numbers pi or e on a General Function definition tap the E or PI button on the Define Function window.To enter a general constant tap in the underlined space next to the E and PI buttons and the number keypad will appear. When you have entered your constant tap the enter key.

The minus sign entered with a constant is always regarded by plotXpose as forming a part of the constant definition. If you enter the constant -3 and raise this to the power 2 although this will be displayed as -3^2 in the function definition it will be interpreted as (-3)^2. To avoid confusion, in these cases, it is preferable to insert brackets around the constant yourself.

plotXpose app is available on Google Play

Google Play and the Google Play logo are trademarks of Google LLC.

Versions will shortly be available for iOS and Windows.

Google Play and the Google Play logo are trademarks of Google LLC.

Versions will shortly be available for iOS and Windows.

plotXpose app is a companion to the book Mathematics for Electrical Engineering and Computing by Mary Attenborough, published by Newnes, 2003.