这是一本关于圆周率的数学读物Thisbookdocumentsthehistoryofpifromthedawnofmathematicaltimetothepresent.Oneofthebeautiesoftheliteratureonpiisthatitallowsfortheinclusionofverymodern,yetaccessible,mathematics.Thearticlesonpicollectedhereinfallintovariousclasses.Firstandforemostthereisaselectionfr