Class Precedence List

rational, real, number, t

Description

The canonical representation of a rational is as an integer if its value is integral, and otherwise as a ratio.

The types integer and ratio are disjoint subtypes of type rational.

Compound Type Specifier Kind

Abbreviating.

Compound Type Specifier Syntax

(rational{[lower-limit [upper-limit]]})

Compound Type Specifier Arguments

lower-limit, upper-limit

interval designators for type rational. The defaults for each of lower-limit and upper-limit is the symbol *.

Compound Type Specifier Description

This denotes the rationals on the interval described by lower-limit and upper-limit.

Backlinks

bignum, bit, coerce, complex, exp, expt, fixnum, integer, Integrating Types and Classes, Numbers Dictionary, Numeric Operations, ratio, rational, rationalize, rationalp, real, Rule of Canonical Representation for Complex Rationals, Rule of Float and Rational Contagion, Sharpsign, signed-byte, Symbols in the COMMON-LISP Package, Type Specifiers, unsigned-byte