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QB64 is a modern extended BASIC programming language that retains QBasic/QuickBASIC 4.5 compatibility and compiles native binaries for Windows, Linux, and macOS.

CDBL converts a value to the closest DOUBLE-precision value.

Syntax

doubleValue# = CDBL(expression)

Parameter(s)

Description

Example(s)

Prints a double-precision version of the single-precision value stored in the variable named A.


 A = 454.67
 PRINT A; CDBL(A)


 454.67 454.6700134277344

The last 11 numbers in the double-precision number change the value in this example, since A was previously defined to only two-decimal place accuracy.

See Also