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38 lines
855 B
Markdown
38 lines
855 B
Markdown
[CDBL](CDBL) converts a value to the closest [DOUBLE](DOUBLE)-precision value.
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## Syntax
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> doubleValue# = [CDBL](CDBL)(expression)
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## Parameter(s)
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* expression is any [TYPE](TYPE) of literal or variable numerical value or mathematical calculation.
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## Description
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* Rounds to the closest [DOUBLE](DOUBLE) floating decimal point value.
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* Also can be used to define a value as [DOUBLE](DOUBLE)-precision up to 15 decimals.
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## Example(s)
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Prints a double-precision version of the single-precision value stored in the variable named A.
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```vb
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A = 454.67
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PRINT A; CDBL(A)
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```
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```text
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454.67 454.6700134277344
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```
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> 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.
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## See Also
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* [CINT](CINT), [CLNG](CLNG)
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* [CSNG](CSNG), [_ROUND](_ROUND)
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