E. T. Whittaker
Edmund Taylor Whittaker  

Born 
Southport, Lancashire 
24 October 1873
Died  24 March 1956  (aged 82)
Nationality  English 
Citizenship  United Kingdom 
Alma mater  Trinity College, Cambridge 
Known for  
Awards 

Scientific career  
Fields  Mathematics 
Institutions  
Academic advisors  
Doctoral students  
Other notable students 
W. V. D. Hodge Marion Cameron Gray 
Edmund Taylor Whittaker FRS^{[1]} FRSE (24 October 1873 – 24 March 1956)^{[1]}^{[3]}^{[4]} was an English mathematician who contributed widely to applied mathematics, mathematical physics, and the theory of special functions. He had a particular interest in numerical analysis, but also worked on celestial mechanics and the history of physics. Near the end of his career he received the Copley Medal, the most prestigious honorary award in British science. The School of Mathematics of the University of Edinburgh holds The Whittaker Colloquium, a yearly lecture in his honour.^{[2]}^{[5]}
Contents
Biography
Whittaker was born in Southport, in Lancashire. He was educated at Manchester Grammar School and Trinity College, Dublin from 1892.^{[6]} He graduated as Second Wrangler in the examination in 1895 and also received the Tyson Medal for Mathematics and Astronomy. In 1896, Whittaker was elected as a Fellow of Trinity College, Cambridge, and remained at Cambridge as a teacher until 1906. Between 1906 and 1911, he was the Royal Astronomer of Ireland and professor of astronomy at Trinity College Dublin where he taught mathematical physics. In 1911, Whittaker became professor at the University of Edinburgh and remained there for the rest of his career.
Shortly after coming to Edinburgh, Whittaker established a Mathematical Laboratory, the first enterprise of this kind in Great Britain, and probably one of the first attempts to make numerical analysis an integral part of the university curriculum. It is probable that in starting this new venture, Whittaker was influenced by his work in astronomy, and by his friendship with the great actuaries of the period. To the knowledge of the present writer, he regarded the introduction of the Mathematical Laboratory course as his most notable contribution to mathematical education. He and his associates, among whom the most outstanding was A. C. Aitken, researched on curve fitting, numerical solution of integral equations, and similar topics. His thorough knowledge of the history and practice of numerical analysis found expression in his Calculus of Observations (written in collaboration with G. Robinson) which today, more than thirty years after its appearance, and after two revolutions in numerical computing, is still one of the most important works on the subject.
A classmate at Manchester Grammar School, Ernest Barker, with whom Edmund shared the office of prefect, later recalled his personality:
 He had a gay, lively, bubbling spirit: he was ready for every prank: he survives in my memory as a natural actor; and I think he could also, on occasion, produce a merry poem.^{[7]}
Whittaker was a Christian and became a convert to the Roman Catholic Church (1930). In relation to that he was a member of the Pontifical Academy of Sciences from 1936 onward and was president of a Newman Society. Earlier at Cambridge in 1901 he married the daughter of a Presbyterian minister. They had five children, including the mathematician John Macnaghten Whittaker (19051984). His elder daughter, Beatrice, married E.T. Copson, who would later become Professor of Mathematics at St. Andrews University.^{[8]}
Whittaker wrote the biography of a famous Italian mathematician, Vito Volterra for the Royal Society in 1941. In 1954, he was awarded the Copley Medal by the Royal Society, their highest award, "for his distinguished contributions to both pure and applied mathematics and to theoretical physics". Back in 1931 Whittaker had received the Royal Society's Sylvester Medal "for his original contributions to both pure and applied mathematics". Whittaker died in Edinburgh, Scotland.
Whittaker & Watson
Whittaker is remembered as the author of the book A Course of Modern Analysis, first published in 1902. The book's later editions were in collaboration with George Neville Watson, and so the book became known as "Whittaker & Watson". The book is one of the handful of mathematics texts of its era that was considered indispensable. It has remained in print continuously for over a century.^{[8]}
Special functions
Whittaker is the eponym of the Whittaker function or Whittaker integral, in the theory of confluent hypergeometric functions. This makes him also the eponym of the Whittaker model in the local theory of automorphic representations. He published also on algebraic functions and automorphic functions. He gave expressions for the Bessel functions as integrals involving Legendre functions.
Partial differential equations
In the theory of partial differential equations, Whittaker developed a general solution of the Laplace equation in three dimensions and the solution of the wave equation. He developed the electrical potential field as a bidirectional flow of energy (sometimes referred to as alternating currents). Whittaker's pair of papers in 1903 and 1904 indicated that any potential can be analysed by a Fourierlike series of waves, such as a planet's gravitational field pointcharge. The superpositions of inward and outward wave pairs produce the "static" fields (or scalar potential). These were harmonicallyrelated. By this conception, the structure of electric potential is created from two opposite, though balanced, parts. Whittaker suggested that gravity possessed a wavelike "undulatory" character.
Special relativity
In 1910, Whittaker wrote A History of the Theories of Aether and Electricity, which gave a very detailed account of the aether theories from René Descartes to Hendrik Lorentz and Albert Einstein, including the contributions of Hermann Minkowski, and which made Whittaker a respected historian of science.
In 1951 (Vol. 1) and 1953 (Vol. 2), he published an extended and revised edition of his book in two volumes. The second volume contains some interesting historical remarks. For example, it contains a chapter named "The Relativity Theory of Poincaré and Lorentz", where Whittaker credited Henri Poincaré and Lorentz for developing special relativity, and especially alluded to Lorentz's 1904 paper (dated by Whittaker as 1903), Poincaré's St. Louis speech (The Principles of Mathematical Physics) of September 1904, and Poincaré's June 1905 paper.^{[9]} He attributed to Einstein's special relativity paper only little importance, which he said "set forth the relativity theory of Poincaré and Lorentz with some amplifications, and which attracted much attention”, and he credited Einstein only with being the first to publish the correct relativistic formulas for relativistic aberration and the Doppler effect. He also attributed the formula to Poincaré. In 1984 Clifford Truesdell wrote that Whittaker "aroused colossal antagonism by trying to set the record straight on the basis of print and record rather than recollection and folklore and professional propaganda,..."^{[10]} On the other hand, Abraham Pais wrote that "Whittaker's treatment of special relativity shows how well the author's lack of physical insight matches his ignorance of the literature".^{[11]} According to Roberto Torretti,^{[12]} "Whittaker's views on the origin of special relativity have been rejected by the great majority of scholars", and he cites Max Born (1956), Gerald Holton (1960,1964), Schribner (1964), Goldberg (1967), Zahar (1973), Hirosige (1976), Schaffner (1976), and Arthur I. Miller (1981).
Nevertheless, Whittaker gave a concise statement of relativity of simultaneity by referring to conjugate diameters of hyperbolas. He wrote, "[the] hyperbola is unaltered when any pair of conjugate diameters are taken as new axes, and a new unit of length is taken proportional to the length of either of these diameters."^{[13]} His observation means that the simultaneous events for a worldline are hyperbolicorthogonal to the worldline.
Works
 1902: A Course of Modern Analysis.
 1903: "On the partial differential equations of mathematical physics." Mathematische Annalen, Vol. 57, p. 333–355.
 1904: "On an expression of the electromagnetic field due to electrons by means of two scalar potential functions." Proc. Lond. Math. Soc. Series 2, Vol. 1, pp. 367–372.
 1904: A Treatise on the Analytical Dynamics of Particles and Rigid Bodies. First Edition, Cambridge.
 1907: The Theory of Optical Instruments (Cambridge Tracts in Mathematics and Mathematical Physics No. 7), Cambridge.
 1910: Recent Researches on Space, Time, and Force, Monthly Notices of the Royal Astronomical Society, Vol. 70, pp. 363–366.
 1910: A History of the theories of aether and electricity (1. edition), Dublin: Longman, Green and Co.
 1915: "On the functions which are represented by the expansions of the interpolation theory," Proc. Royal Soc. Edinburgh, Sec. A, vol.35, pp. 181–194.
 1917: A Treatise on the Analytical Dynamics of Particles and Rigid Bodies. Second Edition, Cambridge.
 1922: "On the quantum mechanism in the atom". Proc. R. Soc. Edinb., Vol. 42, pp. 129–146
 1923: A Short Course in Interpolation. London.
 1924: The Calculus of Observations: A treatise on numerical mathematics.^{[14]}
 1937: Treatise on the Analytical Dynamics of Particles and Rigid Bodies: With an Introduction to the Problem of Three Bodies.^{[15]}^{[16]}
 1943 Chance, freewill and necessity, in the scientific conception of the universe^{[17]} (Guthrie Lecture)
 1946: Space and Spirit: Theories of the Universe and the Arguments for the Existence of God.
 1942: The Beginning and End of the World. Riddell Memorial Lectures, Fourteenth Series. Oxford.
 1946: (editor) Eddington's Fundamental Theory
 1949: From Euclid to Eddington: A Study of Conceptions of the External World.
 1951: Eddington’s Principle in the Philosophy of Science. Cambridge.
 1951: A History of the Theories of Aether and Electricity (2nd edition), vol. 1: The Classical Theories
 1953: vol. 2: The Modern Theories 1900–1926, London: Nelson, ISBN 0486261263
References
 ^ ^{a} ^{b} ^{c} Temple, G. (1956). "Edmund Taylor Whittaker. 18731956" (PDF). Biographical Memoirs of Fellows of the Royal Society. 2: 299–325. doi:10.1098/rsbm.1956.0021.
 ^ ^{a} ^{b} ^{c} E. T. Whittaker at the Mathematics Genealogy Project
 ^ Dingle, H. (1956). "Edmund T. Whittaker, Mathematician and Historian". Science. 124 (3214): 208–209. doi:10.1126/science.124.3214.208. PMID 17838072.
 ^ Aitken, A. C. (2009). "The Contributions of E. T. Whittaker to Algebra and Numerical Analysis". Proceedings of the Edinburgh Mathematical Society. 11: 31. doi:10.1017/S001309150001436X.
 ^ O'Connor, John J.; Robertson, Edmund F., "E. T. Whittaker", MacTutor History of Mathematics archive, University of St Andrews.
 ^ "Whittaker, Edmund Taylor (WHTR892ET)". A Cambridge Alumni Database. University of Cambridge.
 ^ Ernest Barker (1953) Age and Youth, p 280, Oxford University Press
 ^ "The Rise of Special Relativity Henri poincare works" (PDF).
 ^ Clifford Truesdell, An Idiot's Fugitive Essays on Science, page 432, Springer ISBN 0387907033
 ^ Pais, Abraham, "Subtle is the Lord", 1982
 ^ Roberto Torretti, "Relativity and Geometry", 1983
 ^ E. T. Whittaker (1910) A History of the theories of aether and electricity Dublin: Longmans, Green and Co. (see page 441)
 ^ Lehmer, D. N. (1925). "Review: The calculus of observations: a treatise on numerical mathematics, by E. T. Whittaker and G. Robinson". Bull. Amer. Math. Soc. 31 (3): 181–182. doi:10.1090/s000299041925040148.
 ^ Buchanan, Herbert Earle (1938). "Review: Treatise on the Analytical Dynamics of Particles and Rigid Bodies, by E. T. Whittaker". Bull. Amer. Math. Soc. 44 (5): 316. doi:10.1090/s000299041938067286.
 ^ Wilson, E. B. (1906). "Treatise on the Analytical Dynamics of Particles and Rigid Bodies, by E. T. Whittaker". Bull. Amer. Math. Soc. 12 (9): 451–458. doi:10.1090/s000299041906013726.
 ^ E.T. Whittaker (1943). "Chance, freewill and necessity, in the scientific conception of the universe". Proceedings of the Physical Society. 55: 459–471. doi:10.1088/09595309/55/6/303.
Further reading
Wikisource has original works written by or about: E. T. Whittaker 
 "Whittaker Memorial Volume". Proceedings of the Edinburgh Mathematical Society, 1958.
 Bearden, T. E., "Gravitobiology : Conception of Edmund Whittaker (papers of 19031904)". Tesla Book Co., Chula Vista, CA, USA.
 Whittaker and the Aether at MathPages
 1873 births
 1956 deaths
 Academics of the University of Edinburgh
 Alumni of Trinity College, Cambridge
 Applied mathematicians
 Converts to Roman Catholicism
 English historians
 English mathematicians
 English Roman Catholics
 Fellows of the Royal Society
 Historians of science
 Mathematical physicists
 Members of the Pontifical Academy of Sciences
 People educated at Manchester Grammar School
 Academics of Trinity College, Dublin
 People from Southport
 Presidents of the Royal Society of Edinburgh
 Recipients of the Copley Medal
 Second Wranglers
 De Morgan Medallists