infinite? -> 1 | -1 | nil[permalink][rdoc][edit]() → Integer?-
例selfが +∞ のとき1、-∞のとき-1を返します。それ以外はnilを返します。inf = 1.0/0 p inf # => Infinity p inf.infinite? # => 1 inf = -1.0/0 p inf # => -Infinity p inf.infinite? # => -1[SEE_ALSO] Float#finite?
