Constant Definition

A mathematical constant is a significant value that mathematecians have assigned a symbol representation.

τ (tau)

The circle constant τ (tau) is a geometric constant approximately equal to 6.283. The numeric value is defined as the length of any circle's circumference divided by the length of its radius.

π (Pi)

The greek letter π (pi) is a geometric constant approximately equal to 3.1456. The numeric value is equal to the length of any circle's circumference divided by its diameter.

Euler's Number

Euler's number is a naturally occurring number related to exponential growth and exponential decay.

Golden Ratio

The golden ratio is a number represented by the greek letter ϕ (phi). The value of ϕ is approximately 1.618 and is a naturally occurring number in nature.

i

The letter "i" is used in mathematics to represent the square root of negative one. The letter is also used to denote the complex part of a complex number.