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Booth's multiplication algorithm is a multiplication algorithm that multiplies two signed binary numbers in two's complement notation. The algorithm was invented by Andrew Donald Booth in 1950 while doing research on crystallography at Birkbeck College in Bloomsbury, London. [1] Booth's algorithm is of interest in the study of computer ...
A multiplication algorithm is an algorithm (or method) to multiply two numbers. Depending on the size of the numbers, different algorithms are more efficient than others. Numerous algorithms are known and there has been much research into the topic.
That forces the multiplication process to be adapted to handle two's complement numbers, and that complicates the process a bit more. Similarly, processors that use ones' complement , sign-and-magnitude , IEEE-754 or other binary representations require specific adjustments to the multiplication process.
Andrew Donald Booth (11 February 1918 – 29 November 2009) [2] [3] was a British electrical engineer, physicist and computer scientist, who was an early developer of the magnetic drum memory for computers. [1] He is known for Booth's multiplication algorithm. [2] In his later career in Canada he became president of Lakehead University.
Also, as the result of multiplication does not depend on the order of the factors, the distinction between "multiplicand" and "multiplier" is useful only at a very elementary level and in some multiplication algorithms, such as the long multiplication. Therefore, in some sources, the term "multiplicand" is regarded as a synonym for "factor". [13]
There are no cancellation or absorption problems with multiplication or division, though small errors may accumulate as operations are performed in succession. [43] In practice, the way these operations are carried out in digital logic can be quite complex (see Booth's multiplication algorithm and Division algorithm). [nb 9]
An algorithm is fundamentally a set of rules or defined procedures that is typically designed and used to solve a specific problem or a broad set of problems.. Broadly, algorithms define process(es), sets of rules, or methodologies that are to be followed in calculations, data processing, data mining, pattern recognition, automated reasoning or other problem-solving operations.
Booth actually has 2 algorithms. The first one was found to contain a flaw, so the second algorithm is the one that is now used and referenced in industry as Booth's Algorithm, since no one uses his original algorithm. - I suggest having both algorithms on this page(I shall do this if I have time). -source= class @ San Jose State University CS147