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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 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 other means of calculation (such as conventional educational institution ...
Robert Fountain (born in 1969) is a British mental calculator. He won the first Mental Calculation World Cup in 2004 and the second Mental Calculation World Cup in 2006. [1] [2] [3] In 1999 he was recognised by the Mind Sports Organisation as the first Grandmaster of Mental Calculation. Fountain was inspired to take up mental calculation as a ...
Rüdiger Gamm (born 10 July 1971) is a German "mental calculator".He attained the ability to mentally evaluate large arithmetic expressions at the age of 21. [citation needed] He can also speak backwards, and calculate calendars.
Download QR code; Print/export Download as PDF; Printable version; ... Robert Fountain (mental calculator) Thomas Fuller (mental calculator) G. Rüdiger Gamm; Amit Garg;
Salo Finkelstein (born 1896 or 1897, date of death unknown) was a mental calculator. He was born in Łódź (then within the Russian Empire , now in Poland ) to a Jewish family. While at school he was above average in mathematics, and discovered his calculating abilities as well as his faculty in memorizing numbers.
Alberto Coto García (born May 20, 1970) is a Spanish mental calculator. He was the world champion in mental calculation from 2008 to 2010. Professionally he is a financial adviser and accountant. He has demonstrated his skills and has appeared on some TV shows and news [citation needed]. In recent years he has carried out demonstrations and ...
Thomas Fuller (1710 – December 1790), also known as "Negro Demus" and the "Virginia Calculator", was an enslaved African renowned for his mathematical abilities. [ 1 ] History