The real data type

The real data type represents a 64-bit wide, double-precision, floating-point number.

By default, decimal numbers and numbers represented with scientific notation are of type real.

`real` literals

To specify a real literal, use one of the following syntax options:

Syntax	Description	Example
number	A real number represented by one or more digits, followed by a decimal point, and then one or more digits.	`1.0`
number`e`exponent	A real number represented by scientific notation.	`1e5`
`real(null)`	Represents the null value.
`real(nan)`	Not-a-number (NaN), such as when dividing a `0.0` by another `0.0`.
`real(+inf)`	Positive infinity, such as when dividing `1.0` by `0.0`.
`real(-inf)`	Negative infinity, such as when dividing `-1.0` by `0.0`.