max, min  find the maximum or minimum argument
LIBRARY
(import (rnrs)) ;R6RS
(import (rnrs base)) ;R6RS
(import (scheme r5rs)) ;R7RS
(import (scheme base)) ;R7RS
(import (rnrs arithmetic fixnums)) ;R6RS
(import (rnrs arithmetic flonums)) ;R6RS
SYNOPSIS
(max x1 x2 ...)
(fxmax fx1 fx2 ...) ;R6RS
(flmax fl1 fl2 ...) ;R6RS
(min x1 x2 ...)
(fxmin fx1 fx2 ...) ;R6RS
(flmin fl1 fl2 ...) ;R6RS
DESCRIPTION
These procedures return the maximum or minimum of their
arguments.
 Generic versions

For any real number object x that is not a NaN:
(max +inf.0 x) => +inf.0
(min inf.0 x) => inf.0
If any argument is inexact, then the result is also inexact (unless
the procedure can prove that the inaccuracy is not large enough to
affect the result, which is possible only in unusual implementations).
 Fixnum versions

The arguments and the return value are fixnums. There are no special
cases.
 Flonum versions

The arguments are the return value are flonums. If one or more of the
arguments is a NaN then a NaN is returned.
RETURN VALUES
Returns a single number object.
EXAMPLES
(max 3 4) => 4
(max 3.9 4) => 4.0
(max 42 +nan.0) => +nan.0
COMPATIBILITY
The generic versions of these procedures work the same in all Scheme
revisions.
ERRORS
This procedure can raise exceptions with the following condition types:
 &assertion (R6RS)

The wrong number of arguments was passed or an argument was outside its domain.
 &implementationrestriction (R6RS)

May be raised if
min
or
max
is used to compare number objects of mixed exactness, and the
numerical value of the result cannot be represented as an inexact
number object without loss of accuracy.
 R7RS

The reasons for
&assertion
described above are errors.
Implementations may signal an error, extend the procedure's
domain of definition to include such arguments,
or fail catastrophically.
It is not specified how implementations should handle the
&implementationrestriction
case described above, but the program may be stopped.
SEE ALSO
<(3scm)
STANDARDS
R4RS,
IEEE Scheme,
R5RS,
R6RS,
R7RS
HISTORY
The generic versions of these procedures are in all Scheme reports
since R2RS. Early Scheme built on top of MacLISP also provided them.
The fixnum and flonum versions are new in R6RS.
AUTHORS
This page is part of the
schememanpages
project.
It includes materials from the RnRS documents.
More information can be found at
https://github.com/schemedoc/manpages/
.
BUGS
IEEE Scheme accidentally omitted
min.
Markup created by unroff 1.0sc, March 04, 2023.