Hexadecimal symbols : 1 = , 10 =
For more basic information about hexadecimal numbers go to Hex Headquarters

All the hex symbols are in the table below : (first line decimal, second line hexadecimal, binary, hexadecimal)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 2 3 4 5 6 7 8 9 A B C D E F
0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111


Binary numbers :
1010b = (Bit 3 = 1) (Bit 2 = 0) (Bit 1 = 1) (Bit 0 = 0)
1010b = 8*Bit 3 + 4*Bit 2 + 2*Bit 1 + 1*Bit 0
1010b = 8 + 2 = 10

Symbols and bits :
Bit 1 Bit 0
Bit 2 Bit 3


Some examples of number writing :
= 1
= 2
= 4
= 8
= 16
= 32
= 64
= 128
= 256
= 512
= 1024
= 2048
= 4096
= 8192
= 16384
= 32768
=16,
=20(2*16+4)
=85,
=170(10*16+10)
=256,
=3994(15*256+9*16+10)


Arithmetic operations : + - * /
+ =
(1+2=3),
+ =
(3+5=8),
+ =
(5+10=15)
- =
(3-2=1),
- =
(15-12=3),
- =
(128-78=50)
* =
(3*2=6),
* =
(7*2=14),
* =
(21*42=882)
/ =
(12/2=6),
/ = .
(3/2=1.5),
/ =
(102/6=17)


Real numbers in hexadecimal :
.
=0.5
.
=0.25
.
=0.125
.
=0.0625
.
=0.3333333
.
=0.6666666


TO DO in JAVA for example :

- Calculator,
- Converter dec-hexa,
- Converter hexa i.time,
- Internet hexa clock.


Next :
Internet time in hexadecimal
Internet date in hexadecimal