Difference between revisions of "CDBL"

From QB64 Wiki
Jump to navigation Jump to search
imported>Clippy
m
imported>SMcNeill
(style guidelines)
Line 1: Line 1:
{{KW|CDBL}} converts a value to the closest {{KW|DOUBLE}}-precision value.
+
[[CDBL]] converts a value to the closest [[DOUBLE]]-precision value.
  
  
  
 
{{PageSyntax}}
 
{{PageSyntax}}
:: doublevalue = '''CDBL('''''expression''''')'''
+
: {{Parameter|doubleValue#}} = [[CDBL]]({{Parameter|expression}})
  
  
 
{{Parameters}}
 
{{Parameters}}
* The ''expression'' is any [[TYPE]] of literal or variable numerical value or mathematical calculation.
+
* {{Parameter|expression}} is any [[TYPE]] of literal or variable numerical value or mathematical calculation.
  
  
 
{{PageDescription}}
 
{{PageDescription}}
 
* Rounds to the closest [[DOUBLE]] floating decimal point value.
 
* 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.
+
* Also can be used to define a value as [[DOUBLE]]-precision up to 15 decimals.
  
  
 +
{{PageExamples}}
 
''Example:'' Prints a double-precision version of the single-precision value stored in the variable named A.
 
''Example:'' Prints a double-precision version of the single-precision value stored in the variable named A.
 
{{CodeStart}}
 
{{CodeStart}}

Revision as of 11:10, 10 September 2017

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


Syntax

doubleValue# = CDBL(expression)


Parameters

  • expression is any TYPE of literal or variable numerical value or mathematical calculation.


Description

  • Rounds to the closest DOUBLE floating decimal point value.
  • Also can be used to define a value as DOUBLE-precision up to 15 decimals.


Examples

Example: 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



Navigation:
Keyword Reference - Alphabetical
Keyword Reference - By usage
Main WIKI Page