{{KW|CDBL}} converts a value to the closest {{KW|DOUBLE}}-precision value.



{{PageSyntax}}
:: doublevalue = '''CDBL('''''expression''''')'''


{{Parameters}}
* The ''expression'' is any [[TYPE]] of literal or variable numerical value or mathematical calculation.


{{PageDescription}}
* Rounds to the closest [[DOUBLE]] floating decimal point value.
* Also can be used to define a value as {{KW|DOUBLE}}-precision up to 15 decimals.


''Example:'' Prints a double-precision version of the single-precision value stored in the variable named A.
{{CodeStart}}
 A = 454.67
 {{Cl|PRINT}} A; {{Cl|CDBL}}(A)
{{CodeEnd}}
{{OutputStart}} 454.67 454.6700134277344
{{OutputEnd}}
: 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.


{{PageSeeAlso}}
* [[CINT]], [[CLNG]] 
* [[CSNG]], [[_ROUND]]


{{PageNavigation}}