Siteswap (also called Quantum Juggling by the inventor and Cambridge notation in the United Kingdom) is a notation used to describe juggling patterns. It encodes the number of beats of each throw, which is related to their height, and the hand to which the throw is to be made. It is an invaluable tool in determining which combinations of throws yield valid juggling patterns for a given number of objects. It does not describe body movements such as behind-the-back and under-the-leg. The notation was invented by Paul Klimek in Santa Cruz, California in 1981, and later developed by Bruce "Boppo" Tiemann and Bengt Magnusson at the California Institute of Technology in 1985, and by Mike Day, Colin Wright, and Adam Chalcraft in Cambridge, England in 1985 (whence comes the alternative name).
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