Hi & at this site they say

http://en.wikipedia.org/wiki/Hexadecimal

01011110101101010010 =
0101 1110 1011 0101 0010 =
5 E B 5 216 = 5EB5216

my question is , do we count four digits from left to right ?

in other words , how can we deal with this ?

010111101011010100101

i have added the Bold 1 , how can we solve now ?

i may ask another questions ...
thanks a lot .

 

Depends on if it's big or little endian.

 

bre = not clear .
endian = ?

 

Endian notation can be a bit mind-bending - http://en.wikipedia.org/wiki/Endianness

You are probably safe to assume the same order of significance as in decimal notation. The grouping into bytes should proceed from the rightmost bit, so your binary value 010111101011010100101 parses to 0 1011 1101 0110 1010 0101, or 0x0BD6A5

 

Download this handy little windows program;
http://www.romanblack.com/hexcon.htm

You can enter data in dec/hex/binary and it shows the same data in all 3 formats. It also lets you edit data in any of the 3 formats, then press enter and the edit is updated for all 3 formats. (like you can add "1" to the end of a binary number or shift bits << or >> in a binary number and see the result).

 

bre = not clear .
endian = ?

Perhaps you can stump your teacher, ask them.

 

the_rb : link = dead .
beenthere : i understand now , thanks , .

thanks all .

 

MegaMan,

my question is , do we count four digits from left to right ?

in other words , how can we deal with this ?

010111101011010100101

i have added the Bold 1 , how can we solve now ?

You always group binary digits from the right to the left if you are converting binary to a power of 2 base like octal, hexadecimal, etc.

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blueroomelectronics,

Depends on if it's big or little endian.

Only if you are converting to a nonpower of 2 base, such as decimal.

Ratch

 

Endian determines which way you read the binary number, either left to right or right to left.

 

blueroomelectronic,

Endian determines which way you read the binary number, either left to right or right to left.

Endian determines the way a number written in a power of 2 base is interpreted to a nonpower of 2 base.


Ratch

 

Gaak you're right, long day.