Mathematical tables are lists of numbers showing the results of a calculation with varying arguments. Trigonometric tables were used in ancient Greece and India for applications to astronomy and celestial navigation, and continued to be widely used until electronic calculators became cheap and plentiful in the 1970s, in order to simplify and drastically speed up computation. Tables of logarithms and trigonometric functions were common in math and science textbooks, and specialized tables were published for numerous applications.
A graphing calculator is a handheld computer that is capable of plotting graphs, solving simultaneous equations, and performing other tasks with variables. Most popular graphing calculators are programmable calculators, allowing the user to create customized programs, typically for scientific, engineering or education applications. They have large screens that display several lines of text and calculations.
A mental calculator or human calculator is a person with a prodigious ability in some area of mental calculation.
Vedic Mathematics is a book written by Indian Shankaracharya Bharati Krishna Tirtha and first published in 1965. It contains a list of mathematical techniques which were falsely claimed to contain advanced mathematical knowledge. The book was posthumously published under its deceptive title by editor V. S. Agrawala, who noted in the foreword that the claim of Vedic origin, made by the original author and implied by the title, was unsupported.
Shakuntala Devi was an Indian mental calculator, astrologer, and writer, popularly known as the "Human Computer". Her talent earned her a place in the 1982 edition of The Guinness Book of World Records. However, the certificate for the record was given posthumously on 30 July 2020, despite Devi achieving her world record on 18 June 1980 at Imperial College, London. Devi was a precocious child and she demonstrated her arithmetic abilities at the University of Mysore without any formal education.
The Mental Calculation World Cup is an international competition for mental calculators, held every two years in Germany.
Manish Krishnanand Pandey is an Indian international cricketer. He is primarily a right-handed middle-order batsman representing Karnataka in domestic cricket and Kolkata Knight Riders in the Indian Premier League (IPL). He played as an opening batsman for his former IPL team, the Royal Challengers Bangalore, and became the first Indian player to score a century in the IPL in 2009 Indian Premier League. He was a part of the Indian squad which won the 2018 Asia Cup.
Gert Mittring is a German mental calculator. He was inspired by the late Wim Klein. He has competed in the MSO mental calculation event every year since 2004, failing to win the gold medal outright on only four occasions. He has held numerous world records for mental calculation, such as calculating the 89247th root of a 1000000 digit number. He has doctorates in statistics and mathematics education, and is a member of the Intelligence Research Committee of Intertel. Mittring is said to have been poor in math during his school years. He has written several books on mental calculation.
Alberto Coto García is a Spanish mental calculator. He was the world champion in mental calculation from 2008 to 2010.
Conrad Wolfram is a British technologist and businessman known for his work in information technology and mathematics education reform. In June 2020, Wolfram released his first book, The Math(s) Fix: An Education Blueprint for the AI Age.
Sapper Anil Kumar Prakash is a retired Indian sprinter. He held the 100 metres national record of 10.30 s set at the National Circuit Athletic Meet held in New Delhi in 2005 which was broken in 2016.
Yasha Asley is a British mathematics child prodigy of Iranian descent.
Scott Flansburg 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. He has published the books Math Magic and Math Magic for Your Kids.
Anthahpuram (transl. Palace) is a 1998 Indian action drama film, written and directed by Krishna Vamsi. The film stars Soundarya, Prakash Raj, Sai Kumar and Jagapathi Babu with music composed by Ilaiyaraaja. Inspired from 1991 American film Not Without My Daughter (1991), the plot revolves around a newly-married NRI woman finding herself in a traditionally feudal family in the Rayalaseema region of Andhra Pradesh.
Dr Amit Garg is an Indian mathematician and mental calculator He currently works as founder and CEO at ORMAE, a firm registered in USA, UAE & India which engages in building innovative products, consulting and training in Operations Research and Data Science.
Mohammed Siraj is an Indian international cricketer who plays as a right-arm fast bowler for the Indian national team. He also plays for Royal Challengers Bengaluru in the Indian Premier League and Hyderabad in domestic cricket. He was a part of the Indian squad which won the 2023 Asia Cup, where he was the Player of the Match in the final against Sri Lanka. He was a member of the Indian team that won the 2024 T20 World Cup.
Satwiksairaj Rankireddy is an Indian badminton player. He and his partner, Chirag Shetty, are the only doubles pair from India to become World No. 1 in BWF World Ranking, win BWF World Tour 1000 series, and became the first Indians to win a gold at the Asian games in badminton. Also, they became the 5th pair in men's doubles history to achieve 100000 points in the BWF ranking.
Nischal Narayanam is an Indian child prodigy and India's youngest chartered accountant. He completed his post-graduation in mathematics & commerce at the age of 19 from Osmania University, Hyderabad.
Aaryan Shukla is an Indian mental calculator and board member of the Global Mental Calculators Association.
