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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 hobby at the age of 11 after seeing Wim Klein performing on ...
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 ...
For example, the number 45 in scientific notation is 4.5 × 10 1, but one will call it a × 10 b. Next, find the logarithm of a, which is between 1 and 10. Start by finding the logarithm of 4, which is .60, and then the logarithm of 5, which is .70 because 4.5 is between these two.
Mental calculators. Add languages. Add links. Article; ... Download QR code; Print/export Download as PDF; Printable version; In other projects
He is a five-time gold medalist in the Mental Calculations event at the annual Mind Sports Olympiad, [1] [2] and is one of only five Grandmasters of Mental Calculation, [3] as recognised by the Mind Sports Organisation. George is a regular facilitator at the annual Junior Mental Calculation World Championship. [4] He has written two books. [5] [6]
Scott Flansburg (born December 28, 1963) is an American dubbed "The Human Calculator" and listed in the Guinness Book of World Records for speed of mental calculation.He is the annual host and ambassador for The National Counting Bee, a math educator, and media personality.
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 ...
Zerah Colburn (September 1, 1804 – March 2, 1839) [1] [2] [3] was an American child prodigy of the 19th century who gained fame as a mental calculator. [ 4 ] Biography