Double Data Type v2

A Double is a double-precision floating-point number that can contain fractional values and a wide numeric range. Binary floating-point representation can introduce rounding differences for some decimal values.

Its approximate non-zero magnitude range is 5.0 × 10⁻³²⁴ to 1.7 × 10³⁰⁸, with either sign.

Flowgear simplifies floating-point, decimal, and integer Node types to the authored type number:

ExchangeRate:
  Type: number
  Value: 18.75

The receiving Node Method determines whether the runtime value becomes a double, decimal, float, or another numeric type. Follow that contract when precision or range matters.

See also

See Integer Data Type and Data Types.