QBasic 1.1: DOUBLE Keyword

Explanation

Specify the data type for a variable in a declarative statement or parameter list:

Useful and cross-version information about the programming environments of QBasic, QuickBasic and Visual Basic for DOS.

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INTEGER	A 16-bit signed integer variable.
LONG	A 32-bit signed integer variable.
SINGLE	A single-precision 32-bit floating-point variable.
DOUBLE	A double-precision 64-bit floating-point variable.
STRING * n%	A fixed-length string variable n% bytes long.
STRING	A variable-length string variable.