The Art of Mathematics

Help 3.1.2

e constant

1. Definition

Constant e is the base of the exponential function:


Among other possible bases e is selected so that derivative of the function at 0 point is 1:

e0′ = 1

Double precision of the calculator gives e as 2.7182818284590451.

2. How to use

As constant in expressions:


As alternative to the exponential function:


To enter number in exponential format: