Double
Standard data type: 64 bit floating point
Syntax
`
Dim variable As Double
`
Description
Double is a 64-bit, floating-point data type used to store more precise decimal numbers. They can hold positive values in the range `4.940656458412465e-324` to `1.797693134862316e+308`, or negative values in the range `-4.940656458412465e-324` to `-1.797693134862316e+308`, or zero (`0`). They contain at most 53 bits of precision, or about 15 decimal digits.
`Double`s have a greater range and precision than `Single`s, they still have limited accuracy which can lead to significant inaccuracies if not used properly. They are dyadic numbers - i.e. they can only accurately hold multiples of powers of two, which will lead to inaccuracies in most base-10 fractions.
Example
`
'Example of using a double variable.
Dim a As Double
a = 1.985766472453666
Print a
Sleep
`
Differences from QB

- None

See also

- `Single` Less precise float type
- `CDbl`
- TblVarTypes Table with variable types overview, limits and suffixes