Pattern Name and Number Repn
The pattern name of a bit pattern is the same as the base sixteen representation of the number that the bit pattern represents in base two.
Converting between base 16 representation and base 2 representation is easy because 16 is a power of 2. Another base where this is true is base 8 (octal), since 8 is 23. In base 8, the digits are 0, 1, 2, 3, 4, 5, 6, 7. The binary equivalents of the digits are 000, 001, 010, 011, 100, 101, 110, 111.
Each place in a base 8 number corresponds to a left shift of 3 places, in the bit pattern of its binary repn.
Be careful: in some computer languages (Java and C, for instance) a number written with a leading zero signifies octal. So 0644 means base eight, and 644 means base ten, and 0x644 means base sixteen.
