ToC DocOverview CGDoc RelNotes Index PermutedIndex
Allegro CL
Home Previous Up Next Table of Contents Index
  ANSI Common Lisp   12 Numbers   12.1 Number Concepts   12.1.5 Complex Computations

12.1.5.3 Rule of Canonical Representation for Complex Rationals

If the result of any computation would be a complex number whose real part is of type rational and whose imaginary part is zero, the result is converted to the rational which is the real part. This rule does not apply to complex numbers whose parts are floats. For example, #C(5 0) and 5 are not different objects in Common Lisp (they are always the same under eql); #C(5.0 0.0) and 5.0 are always different objects in Common Lisp (they are never the same under eql, although they are the same under equalp and =).

12.1.5.3.1  Examples of Rule of Canonical Representation for Complex Rationals


Home Previous Up Next Table of Contents Index
© Franz Inc. 1998-2012 - File last updated 02-24-2012