HEX$

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This function returns the hexadecimal (base 16) representation of any numeric value.


Syntax

hexvalue$ = HEX$(number)


Parameters

  • number can be any INTEGER, LONG or _INTEGER64 value, positive or negative.
  • 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.


Description

  • The function returns the base 16 (hexadecimal) representation of the given 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 hex string value back to a decimal value by prefixing the string with "&H".
    • Eg. decimal = VAL("&H" + hexvalue$).


Examples

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

LOCATE 2, 10: PRINT tabletop$
LOCATE 3, 10: PRINT tablesep$
FOR n% = 0 TO 15
    LOCATE 4 + n%, 10: PRINT USING tableout$; STR$(n%); HEX$(n%); OCT$(n%); _BIN$(n%)
NEXT n%
Note
Although the decimal numbers 0-15 have a maximum width of 2 digits only, an extra space in the tableout$ template is needed when using the (fixed width string) slash output format, as STR$ values contain a leading sign placeholder space.
          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


Example 2
Converting a hexadecimal value to decimal.
hexvalue$ = HEX$(255)
PRINT "Hex: "; hexvalue$
PRINT "Converting Hex value to Decimal:"; VAL("&H" + hexvalue$)
Hex: FF
Converting Hex value to Decimal: 255


See also



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