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The Ready-Reckoner, or Farmer’s Complete Table; Aberystwyth, 19th century. A ready reckoner is a printed book or table containing pre-calculated values, often multiples of given amounts. They were widely used in shops and by tradesmen before the advent of cheap electronic calculators, metric weights and measures and decimal currencies in the ...
The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of London [2] and completed in 1694). [1] The name comes from the translation of the German term for its operating mechanism, Staffelwalze ...
Dosage Index. The Dosage Index is a mathematical figure used by breeders of Thoroughbred race horses, and sometimes by bettors handicapping horse races, to quantify a horse's ability, or inability, to negotiate the various distances at which horse races are run. It is calculated based on an analysis of the horse's pedigree.
Claiming race. In Thoroughbred racing, a claiming race is a type of horse race in which the horses are all for sale at a specified claiming price until shortly before the race. In the hierarchy of horse races, based on the quality of the horses that compete, claiming races are at the bottom, below maiden races (races for horses that have never ...
Independent Chip Model. In poker, the Independent Chip Model (ICM), also known as the Malmuth–Harville method, [1] is a mathematical model that approximates a player's overall equity in an incomplete tournament. David Harville first developed the model in a 1973 paper on horse racing; [2] in 1987, Mason Malmuth independently rediscovered it ...
A daily double is a parimutuel wager offered by horse racing and greyhound racing tracks in North America. Bettors wager on the winners of two consecutive races, [1] pre-designated by the track for a particular race day. The wager is made before either of the two races is run, and is only successful if both of the selections are correct.
Trifecta. A trifecta is a parimutuel bet placed on a horse race in which the bettor must predict which horses will finish first, second, and third, in the exact order. [1] Known as a trifecta in the US and Australia, [2] this is known as a tricast in the UK, [3] a tierce in Hong Kong, [4] a triactor in Canada [5] and a tiercé in France. [6]
Starting price. In horse racing and greyhound racing, the starting price (SP) is the odds prevailing on a particular entry in the on-course fixed-odds betting market at the time a race begins. The method by which SPs are set for each runner varies in different countries but is generally by consensus of an appointed panel on the basis of their ...