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Using a 256-entry table is usually most convenient, but other sizes can be used. In small microcontrollers, using a 16-entry table to process four bits at a time gives a useful speed improvement while keeping the table small. On computers with ample storage, a 65 536-entry table can be used to process 16 bits at a time.
A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data. [1] [2] Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents. On retrieval, the calculation is ...
Replaced the half-marathon in 2006 only at the World Road Running Championships: 50 kilometres race walk (road) 1932 – 2020 (except 1976) 1983 – 2019: 2017 – 2019: Marathon relay (road) 1992 – 1998: 1992 – 1998: World Road Relay Championships: Cross country running short race 1998 – 2006: 1998 – 2006: World Cross Country ...
In running events up to 200 m in distance and in horizontal jump events, wind assistance is permitted only up to 2.0 m/s. In decathlon or heptathlon, average wind assistance of less than 2.0 m/s is required across all applicable disciplines; and maximum of 4.0 m/s in any one event. As an exception, according to rule 36.2, specific event ...
Tokyo Marathon: Tokyo, Japan [26] 30,000 m (track) 1:31:30.4 h: Jim Alder Great Britain: 5 September 1970 London, United Kingdom 30 km (road) 1:27:53 + Bashir Abdi Belgium 24 October 2021 Rotterdam Marathon: Rotterdam, The Netherlands [27] Marathon: 2:03:36 Bashir Abdi Belgium 24 October 2021 Rotterdam Marathon: Rotterdam, The Netherlands [28 ...
The marathon is a long-distance foot race with a distance of 42.195 kilometres (c. 26 mi 385 yd), [1] usually run as a road race, but the distance can be covered on trail routes. The marathon can be completed by running or with a run/walk strategy. There are also wheelchair divisions. More than 800 marathons are held worldwide each year, with ...
It is the second most prestigious global title in the discipline after the marathon at the Olympics. From 1997 to 2011 it hosted the World Marathon Cup team event. It currently forms part of the World Marathon Majors circuit, which includes the six top annual races. The competition format has separate men's and women's races, which both serve ...
A moment of an 800 metres race, last event in women's heptathlon.. Combined track and field events are competitions in which athletes participate in a number of track and field events, earning points for their performance in each event, which adds to a total points score.