{{QBDLDATE:05-20-2022}}
{{QBDLTIME:23:06:39}}
{{DISPLAYTITLE:_BIN$}}
This function returns the binary (base 2) representation of any numeric value.


{{PageSyntax}}
: {{Parameter|binvalue$}} = [[_BIN$]]({{Parameter|number}})


{{PageParameters}}
* {{Parameter|number}} can be any [[INTEGER]], [[LONG]] or [[_INTEGER64]] value, positive or negative.
* {{Parameter|number}} can also be any [[SINGLE]], [[DOUBLE]] or [[_FLOAT]] value, but only the integer part of the value is converted in that case. That is, from the value ''-123.45'' the function would convert the ''-123'' only.


{{PageDescription}}
* The function returns the base 2 (binary) representation of the given {{Parameter|number}} as [[STRING]].
* Different from [[STR$]], this function does not return a leading sign placeholder space, so no [[LTRIM$]] to strip that space from positive numbers is necessary.
* [[VAL]] can convert the returned bin string value back to a decimal value by prefixing the string with "[[&B]]".
** Eg. {{InlineCode}}decimal = VAL("&B" + binvalue$){{InlineCodeEnd}}.


{{PageAvailability}}
* '''QB64 2.1 and up''' (QB64 Team)
* '''QBPE 0.5 and up''' (QB64 Phoenix Edition)


{{PageExamples}}
;Example 1:Comparing decimal, hexadecimal, octal and binary string values from 0 to 15.
{{CodeStart}}
tabletop$ = " Decimal | Hexadecimal | Octal | Binary "
tablesep$ = "---------+-------------+-------+--------"
tableout$ = "  \ \    |      \\     |   \\  |  \  \  " 'the PRINT USING template

{{Cl|LOCATE}} 2, 10: {{Cl|PRINT}} tabletop$
{{Cl|LOCATE}} 3, 10: {{Cl|PRINT}} tablesep$
{{Cl|FOR...NEXT|FOR}} n% = 0 {{Cl|TO}} 15
    {{Cl|LOCATE}} 4 + n%, 10: {{Cl|PRINT USING}} tableout$; {{Cl|STR$}}(n%); {{Cl|HEX$}}(n%); {{Cl|OCT$}}(n%); {{Cl|_BIN$}}(n%)
{{Cl|NEXT}} n%
{{CodeEnd}}
;Note:Although the decimal numbers 0-15 have a maximum width of 2 digits only, an extra space in the ''tableout$'' template is needed when using the (fixed width string) slash output format, as [[STR$]] values contain a leading sign placeholder space.
{{OutputStart}}
          Decimal | Hexadecimal | Octal | Binary
         ---------+-------------+-------+--------
            0     |      0      |   0   |  0
            1     |      1      |   1   |  1
            2     |      2      |   2   |  10
            3     |      3      |   3   |  11
            4     |      4      |   4   |  100
            5     |      5      |   5   |  101
            6     |      6      |   6   |  110
            7     |      7      |   7   |  111
            8     |      8      |   10  |  1000
            9     |      9      |   11  |  1001
            10    |      A      |   12  |  1010
            11    |      B      |   13  |  1011
            12    |      C      |   14  |  1100
            13    |      D      |   15  |  1101
            14    |      E      |   16  |  1110
            15    |      F      |   17  |  1111
{{OutputEnd}}


;Example 2:Converting a binary value to decimal.
{{CodeStart}}
binvalue$ = {{Cl|_BIN$}}(255)
{{Cl|PRINT}} "Bin: "; binvalue$
{{Cl|PRINT}} "Converting Bin value to Decimal:"; {{Cl|VAL}}("&B" + binvalue$)
{{CodeEnd}}
{{OutputStart}}
Bin: 11111111
Converting Bin value to Decimal: 255
{{OutputEnd}}


{{PageSeeAlso}}
* [[HEX$]], [[OCT$]], [[STR$]], [[VAL]]
* [[&B]] {{text|(binary)}}, [[&H]] {{text|(hexadecimal)}}, [[&O]] {{text|(octal)}}
* [[Base Comparisons]]


{{PageNavigation}}