# Double

A finite double precision IEEE 754 floating point number.

## [](#_defining_a_double_valued_attribute)Defining a double valued attribute

```typeql
#!test[schema]
define
attribute latitude @independent, value double;
attribute longitude @independent, value double;
```

## [](#_inserting_a_double_valued_attribute)Inserting a double valued attribute

```typeql
#!test[write]
insert
  $_ isa latitude 11.373333;
  $_ isa longitude 142.591667;
```

[Integer](../integer/index.md) [Decimal](../decimal/index.md)

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