digit-by-digit algorithm
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Multiplication algorithm — A multiplication algorithm is an algorithm (or method) to multiply two numbers. Depending on the size of the numbers, different algorithms are in use. Efficient multiplication algorithms have existed since the advent of the decimal system.… … Wikipedia
Check digit — A check digit is a form of redundancy check used for error detection, the decimal equivalent of a binary checksum. It consists of a single digit computed from the other digits in the message. With a check digit, one can detect simple errors in… … Wikipedia
Luhn algorithm — The Luhn algorithm or Luhn formula, also known as the modulus 10 or mod 10 algorithm, is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, National Provider Identifier… … Wikipedia
Karatsuba algorithm — The Karatsuba multiplication algorithm, a technique for quickly multiplying large numbers, was discovered by Anatolii Alexeevich Karatsuba in 1960 and published in the joint paper with Yu. Ofman in 1962. It reduces the multiplication of two n… … Wikipedia
Verhoeff algorithm — The Verhoeff algorithm, a checksum formula for error detection first published in 1969, was developed by Dutch mathematician Jacobus Verhoeff (born 1927). Like the more widely known Luhn algorithm, it works with strings of decimal digits of any… … Wikipedia
Sorting algorithm — In computer science, a sorting algorithm is an algorithm that puts elements of a list in a certain order. The most used orders are numerical order and lexicographical order. Efficient sorting is important for optimizing the use of other… … Wikipedia
Cooley-Tukey FFT algorithm — The Cooley Tukey algorithm, named after J.W. Cooley and John Tukey, is the most common fast Fourier transform (FFT) algorithm. It re expresses the discrete Fourier transform (DFT) of an arbitrary composite size N = N 1 N 2 in terms of smaller… … Wikipedia
Cooley–Tukey FFT algorithm — The Cooley–Tukey algorithm, named after J.W. Cooley and John Tukey, is the most common fast Fourier transform (FFT) algorithm. It re expresses the discrete Fourier transform (DFT) of an arbitrary composite size N = N1N2 in terms of smaller DFTs… … Wikipedia
Shifting nth-root algorithm — The shifting nth root algorithm is an algorithm for extracting the n th root of a positive real number which proceeds iteratively by shifting in n digits of the radicand, starting with the most significant, and produces one digit of the root on… … Wikipedia
Quine–McCluskey algorithm — The Quine–McCluskey algorithm (or the method of prime implicants) is a method used for minimization of boolean functions which was developed by W.V. Quine and Edward J. McCluskey. It is functionally identical to Karnaugh mapping, but the tabular… … Wikipedia
Lehmer's GCD algorithm — Lehmer s GCD algorithm, named after Derrick Henry Lehmer, is a rather fast GCD algorithm, an improvement on the simpler but slower Euclidean algorithm. Algorithm Lehmer noted that that most of the quotients from each step of the division part of… … Wikipedia
