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A mental calculator or human calculator is a person with a prodigious ability in some area of mental calculation (such as adding, subtracting, multiplying or dividing large numbers). In 2005, a group of researchers led by Michael W. O'Boyle, an American psychologist previously working in Australia and now at Texas Tech University , has used MRI ...
Mental calculation has long been a component of mathematical education. Mental calculation consists of arithmetical calculations using only the human brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator. People may use mental calculation when computing tools are not available, when it is faster than ...
Dyscalculia (/ ˌdɪskælˈkjuːliə /) [1][2][3][4] is a learning disability resulting in difficulty learning or comprehending arithmetic, such as difficulty in understanding numbers, numeracy, learning how to manipulate numbers, performing mathematical calculations, and learning facts in mathematics. It is sometimes colloquially referred to ...
Website. bhanzu.com. Neelakanta Bhanu Prakash (born 13 October 1999) is a human calculator, YouTuber and entrepreneur from Hyderabad, India, and is titled as the "World's Fastest Human Calculator". [1] He won gold in the 2020 Mental Calculation World Championship at Mind Sports Olympiad 2020. He also holds 50 Limca records for his mathematical ...
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Trachtenberg system. The Trachtenberg system is a system of rapid mental calculation. The system consists of a number of readily memorized operations that allow one to perform arithmetic computations very quickly. It was developed by the Ukrainian engineer Jakow Trachtenberg in order to keep his mind occupied while being in a Nazi concentration ...