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ANSI Common Lisp  12 Numbers 12.2 Dictionary of Numbers
| 12.2.6 rational |
System Class |
- 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.
- Allegro CL Implementation Details:
-
None.
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