mirror of
https://github.com/DualBrain/QB64.git
synced 2023-11-19 13:10:13 +00:00
39 lines
855 B
Markdown
39 lines
855 B
Markdown
|
[CDBL](CDBL) converts a value to the closest [DOUBLE](DOUBLE)-precision value.
|
||
|
|
|
||
|
|
## Syntax
|
||
|
|
|
||
|
|
> doubleValue# = [CDBL](CDBL)(expression)
|
||
|
|
|
||
|
|
## Parameter(s)
|
||
|
|
|
||
|
|
* expression is any [TYPE](TYPE) of literal or variable numerical value or mathematical calculation.
|
||
|
|
|
||
|
|
## Description
|
||
|
|
|
||
|
|
* Rounds to the closest [DOUBLE](DOUBLE) floating decimal point value.
|
||
|
|
* Also can be used to define a value as [DOUBLE](DOUBLE)-precision up to 15 decimals.
|
||
|
|
|
||
|
|
## Example(s)
|
||
|
|
|
||
|
|
Prints a double-precision version of the single-precision value stored in the variable named A.
|
||
|
|
|
||
|
|
```vb
|
||
|
|
|
||
|
|
A = 454.67
|
||
|
|
PRINT A; CDBL(A)
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
```text
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
* [CINT](CINT), [CLNG](CLNG)
|
||
|
|
* [CSNG](CSNG), [_ROUND](_ROUND)
|