Euler's Number

e is Euler's numbers

Approx. 2.718 it is the limit of (1+1/x)^x as x approaches infinity.

How to display e on a scientific calculator

(How to display Euler's number on a calculator in Windows)

To show it on a scientific calculator...

You need to use the e^x button which is only visible when you click the Inv button.

So enter the number 1. Click Inv then e^x and you will thus find the value of e^1, i.e. e.