01196cam a2200253I 450 mathematicalrecr00ball CaSfIA 20250507140049.0 m o d cr|||||||||||| 740425 1914 o eng u (OCoLC)1157173974 HEI OCL WEL CaSfIA Ball, W. W. Rouse (Walter William Rouse), 1850-1925. Mathematical recreations and essays. 6th ed. London, Macmillan, 1914. 1 online resource (xvi, 506 pages illustrations) Arithmetical recreations.--Geometrical recreations.--Mechanical recreations.--Chessboard recreations.--Magic squares.--Unicursal problems.--Kirkman's school-girls problem.--Miscellaneous problems.--The mathematical tripos.--Three classical geometrical problems.--The parallel postulate.--Insolubility of the algebraic quintic.--Mersenne's numbers.--String figures.--Astrology.--Cryptographs and ciphers.--Hyper-space.--Time and its measurement.--Matter and ether theories. Advertising matter: p. 493-506. Includes bibliographical references. Mathematical recreations. Geometry Famous problems. Cryptography. Ciphers. https://archive.org/details/mathematicalrecr00ball Free eBook from the Internet Archive https://openlibrary.org/books/OL23416695M Additional information and access via Open Library mathematicalrecr00ball ark:/13960/t3qv3zd6r