Text ( visual ) : unmediated The square root of 2 : a dialogue concerning a number and a sequence / David Flannery. -- New York : Copernicus ; [Chichester, England] : Praxis , c2006. -- x, 256 p. : ill. ; 25 cm. -- Includes bibliographical references (p. 251-253) ; 2 is written in √.. -- ISBN 038720220X ; (BA75090643) ; https://ci.nii.ac.jp/ncid/BA75090643 Other Title(s): [√2]. -- Author Heading(s): Flannery, David. -- Classification(s): LCC : QA247.5 ; DC22 : 512.786. -- Subject Heading(s): LCSH : Irrational numbers