W. W. Rouse Ball

Walter William Rouse Ball (14 August 1850 – 4 April 1925), known as W. W. Rouse Ball, was a British mathematician, lawyer, and fellow at Trinity College, Cambridge, from 1878 to 1905. He was also a keen amateur magician, and the founding president of the Cambridge Pentacle Club in 1919, one of the world's oldest magic societies.

Life Born 14 August 1850 in Hampstead, London, Ball was the son and heir of Walter Frederick Ball, of 3, St John's Park Villas, South Hampstead, London. Educated at University College School, he entered Trinity College, Cambridge, in 1870, became a scholar and first Smith's Prizeman, and gained his BA in 1874 as second Wrangler. He became a Fellow of Trinity in 1875, and remained one for the rest of his life.

He died on 4 April 1925 in Elmside, Cambridge,

He is commemorated in the naming of the small pavilion, now used as changing rooms and toilets, on Jesus Green in Cambridge.

Books A History of the Study of Mathematics at Cambridge; Cambridge University Press, 1889 (reissued by the publisher, 2009, ) (1st ed. 1888 and later editions). Dover 1960 republication of fourth edition: . (1st ed. 1892; later editions with H.S.M. Coxeter) A History of the First Trinity Boat Club (1908) (1st ed. 1918). Macmillan and Co., Limited 1918: . String Figures; Cambridge, W. Heffer & Sons (1st ed. 1920, 2nd ed. 1921, 3rd ed. 1929, reprinted with supplements as Fun with String Figures by Dover Publications, 1971, )