I dont freakin know, use a god damned calculator, I'm not Einstein mother fu**er.
Find out how are keyboard letters represented as binary data.
Find the powers of 2. 8 in binary would be 1000
It's the same as dividing by 10
You convert numbers from any base to any other base by successive division by the target base, using the rules of division in the source base, while tracking each remainder until the result is zero. To convert from hex to octal, you successively divide by 8. Just do it in hex, not decimal. An example to convert 9C16 to 2358... 9C16 divided by 816 is 1316 remainder 516 1316 divided by 816 is 216 remainder 316 216 divided by 816 is 016 remainder 216 Write the remainders down in reverse order, 2, 3, 5, or 2358. I find it easier to convert to binary first and then convert the binary to octal. To do this, convert each hex digit to binary. Then starting at the right split the binary digits into groups of three, adding 0's at the end if needed. Each group of three converts to an octal digit. Example: A B F 2 = 1010 1011 1111 0010 = 001 010 101 111 110 010 (group by threes and add two 0's at the front) = 1 2 5 7 6 2 The trick of converting the digits works because 8 and 16 are both powers of two.
By dividing the number of its sides into 360 degrees
To convert a binary number of an octal number, group each set of three bits into a group, starting from the right. Then, convert each group into its decimal equivalent. A 1 in the leftmost bit is a 4, a one in the middle bit is a 2, and a one in the right bit is a 1. For example, 101 is 4+0+1, or 5. Grouping should be as follows:Binary: 0011010011010110Grouped: 0 011 010 011 010 110Octal: 032326You may also find programs that will perform this conversion for you. Windows Calculator can perform this translation for you when using the advanced mode that shows binary/hex/octal options.
If necessary, pad the value with zeroes so the number of bits is an exact multiple of 3. Then divide the binary value into groups of 3 bits. Convert each group to its corresponding octal digit as follows: Bin = Oct 000 = 0 001 = 1 010 = 2 011 = 3 100 = 4 101 = 5 110 = 6 111 = 7 Example 1: 16-bit value: 1011101101100011 3-bit groupings: (00)1 011 101 101 100 011 Octal digits: 1 3 5 4 3 Octal value: 13543 Example 2: 24-bit value: 010111011010010101011010 3-bit groupings: 010 111 011 010 010 101 011 010 Octal digits: 2 7 3 2 2 5 3 2 Octal value: 27322532
The numbers used in the binary number system are 1 and 0
Why do we use Octal? Octal comes into a close second. In octal, you can represent, at most, 3 bits with a single octal digit. So it's very easy to say 311 is 11 001 001. The problem with octal, as you can see, is that the 3rd octal digit can only goes as high as 3, so it does not represent a byte as cleanly as hex. Octal is used in Unix for permissions due to its 3-bit nature. If we take the three specific entitlements (read, write, execute) for a file, we find that it coincides very well with octal. That's why you see those really funky "chmod 744" commands, because they are octal representation of permissions, 111 100 100, or R-W-E, Read, Read for owner, group, world respectively (at least that is how it was explained to me). The leftmost bit represents the read flag, the middle one represents the write flag, and the rightmost flag represents execute. So if you wanted the permission for read-write, it would be 110, or 6. Read and execute would be 101 or 5. Additional Answer: Since Octal (base-8) and Hexadecimal (base-16) are powers of two, that means they map directly to binary. For instance, each character in a base-16 number corresponds to 4 bits. So if I have a 4-byte (32-bit) number in hex, I could write out the binary sequence without really thinking about it. Also, one digit could change, and it would only change those corresponding 4 bits. In decimal, changing one digit can change many or all of the bits. This is why it is easier for programmers to use Hex, because it is a direct representation of the binary sequence. I believe we adopted the decimal system because we have 10 fingers. In actuality, hexadecimal would be a much better system for everyone to use. Society as a whole would be more mathematically inclined if they began learning hex when they were children, and we just did away with decimal altogether. Hexadecimal is much more natural than decimal. Octal and hexadecimal numeration systems would be pointless if not for their ability to be easily converted to and from binary notation. Their primary purpose in being is to serve as a "shorthand" method of denoting a number represented electronically in binary form. Because the bases of octal (eight) and hexadecimal (sixteen) are even multiples of binary's base (two), binary bits can be grouped together and directly converted to or from their respective octal or hexadecimal digits. With octal, the binary bits are grouped in three's (because 23 = 8), and with hexadecimal, the binary bits are grouped in four's (because 24 = 16). Incidentally, hexadecimal notation is more popular, because binary bit groupings in digital equipment are commonly multiples of eight (8, 16, 32, 64, and 128 bit), which are also multiples of 4. Octal, being based on binary bit groups of 3, doesn't work out evenly with those common bit group sizing's.
Find out how are keyboard letters represented as binary data.
Find the powers of 2. 8 in binary would be 1000
To find the 2's complement of a binary number, invert all the bits and add 1 to the result.
void Decimal_to_Octal(){int n,r[10],i;coutn;cout
The binary system of numbers is based on the numerals 1 and 0
you find a mixed number by dividing a number by one of the alike factors and then you have it
To find the two's complement of a binary number, invert all the bits and add 1 to the result.
It's the same as dividing by 10