Mental calculator
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Mental calculators are people with a prodigious ability in some area of mental calculation, such as multiplying large numbers together or factoring large numbers. Some mental calculators are autistic, with a narrow area of great skill and poor mental development in other directions (see savant), but many have simply developed skills in this regard. A good many are also experienced mathematicians, linguists, writers, and so on.
Mental calculators were in great demand in research centers such as CERN before the advent of modern electronic calculators and computers. See, for instance, the modern book The Great Mental Calculators, whose introduction was written by Eberstark (see below).
Michael O'Boyle, an American psychologist working in Australia, has recently utilized fMRI scanning of blood flow during mental operation in prodigies to display startling results. Mathematical prodigies achieve blood flow to parts of the brain responsible for mathematical operations six to seven times the typical flow.
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Techniques on mental calculation
Some mental calculators
- Alexander Aitken (A. C. Aitken)
- Arthur T. Benjamin
- Zacharias Dase
- Shakuntala Devi
- Pericles Diamandi
- Urania Diamandi
- Hans Eberstark
- Leonhard Euler
- Carl Friedrich Gauss
- Brian Greene
- Willem Klein
- John Law
- John Von Neumann
- Bernhard Riemann
- Jakow Trachtenberg
- Tathagat Avatar Tulsi
- Srinivasa Ramanujan
External links
- Prodigy Calculators by Viktor Pekelis (http://users.lk.net/~stepanov/mnemo/pekelise.html)
- Willem Klein (http://users.lk.net/~stepanov/mnemo/mkleine.html)
- Thought and machine processes (http://users.lk.net/~stepanov/mnemo/fastere.html)
- Tricks and techniques (http://users.lk.net/~stepanov/mnemo/mnemoare.html)