Search results
Results from the WOW.Com Content Network
A binary computer does exactly the same multiplication as decimal numbers do, but with binary numbers. In binary encoding each long number is multiplied by one digit (either 0 or 1), and that is much easier than in decimal, as the product by 0 or 1 is just 0 or the same number.
It is making use of the fact that it is not necessary to do anything but shift while dealing with 0s in a binary multiplier, and is similar to using the mathematical property that 99 = 100 − 1 while multiplying by 99. This scheme can be extended to any number of blocks of 1s in a multiplier (including the case of a single 1 in a block). Thus,
Given a decimal number, it can be split into two pieces of about the same size, each of which is converted to binary, whereupon the first converted piece is multiplied by 10 k and added to the second converted piece, where k is the number of decimal digits in the second, least-significant piece before conversion.
92 is palindromic in other bases, where it is represented as 232 6, 161 7, 44 22, and 22 45. There are 92 numbers such that does not contain all digits in base ten (the largest such number is 168, where 68 is the smallest number with such a representation containing all digits, followed by 70 and 79). [9]
In mathematics, a binary operation or dyadic operation is a rule for combining two elements (called operands) to produce another element. More formally, a binary operation is an operation of arity two. More specifically, a binary operation on a set is a binary function whose two domains and the codomain are the same set.
Some variants are commonly referred to as square-and-multiply algorithms or binary exponentiation. These can be of quite general use, for example in modular arithmetic or powering of matrices. For semigroups for which additive notation is commonly used, like elliptic curves used in cryptography , this method is also referred to as double-and-add .
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Lunar arithmetic, formerly called dismal arithmetic, [1] [2] is a version of arithmetic in which the addition and multiplication operations on digits are defined as the max and min operations.