# Constants

## .E

`math.E : num`

Represents Euler's number, the base of natural logarithms (**e**), approximately 2.718.

## .LN2

`math.LN2 : num`

Natural logarithm of 2, approximately 0.693.

## .LN10

`math.LN10 : num`

Natural logarithm of 10, approximately 2.303.

## .LOG2E

`math.LOG2E : num`

Base 2 logarithm of E, approximately 1.443.

## .LOG10E

`math.LOG10E : num`

Base 10 logarithm of E, approximately 0.434.

## .SQRT2

`math.SQRT2 : num`

Square root of 2, approximately 1.414.

## .PI

`math.PI : num`

Represent the ratio of the circumference of a circle to its diameter, approximately 3.14159.

## .NAN

`math.NAN : num`

Not a number, equivalent to value of expression `0 / 0`.

## .INF

`math.INF : num`

Infinite number, equivalent to value of expression `1 / 0`.