ios-binary, decimal, hexadecimal reciprocal conversions

Binary into decimal 1001 1010 = 1*2^7+0*2^6+0*2^5+1*2^4+1*2^3+0*2^2+1*2^1+0*2^0

Binary hexadecimal 0011 1101 1011 = 3db

Binary into octal 1010 1100 = 010 101 100 = 254

Decimal into binary

2^0 = 1,2^1 = 2, 2^2 = 4,2^3 = 8,2^4 = 16,2^5 = 32,2^6 = 64, 2^7 = 128,2^8 = 256,2^9 = 512,2^10 = 1024;

254 = 128 + 64 + 32 + 16 + 8 +4 +2

= 2^7 + 2^6 + 2^5 + 2^4 + 2^3 +2^2+ 2^1

= 1111 1110

octal into binary efa9 = 1110 1111 1010 1001

hexadecimal to binary 456 = 100 101 110 = 1 0010 1110

octal into decimal 123 = 1*8^2 + 2*8^1+3*8^0 = 64+16+3 = 83;

Decimal into octal

8^0 = 1,8^1 = 8,8^2 = 64,8^3 = 512;

543 = 512 + 24 + 7 = 1*8^3 + 3*8^1 + 7*8^0 = 1037

Decimal conversion to hexadecimal

16^0 = 1,16^1 = 16, 16^2 = 256,16^3 = 4096;

314 = 1*16^2 + 3*16^1 + *16^0 = 13a;

hexadecimal conversion to Decimal 9a = 9 *16^1 +10*16^0 = 144 + 10 = 154;

ios-binary, decimal, hexadecimal reciprocal conversions