<=

<=

type: function (subr)
location: built-in
source file: xlmath.c
Common LISP compatible: yes
supported on: all machines

SYNTAX

(<= <expr1> <expr2> ... )
        <exprN>         -       a numeric expression

DESCRIPTION

The <= (LESS-THAN-OR-EQUAL) operation takes an arbitrary number of numeric arguments. It checks to see if all the numbers are monotonically non-decreasing. T is returned if the arguments are numerically, monotonically non-decreasing, NIL is returned otherwise. For two arguments, this has the effect of testing if <expr1> is less than or equal to <expr2>.

EXAMPLES

(<= 1 1)                                ; returns T
(<= 1 2)                                ; returns T
(<= 2.0 1.99)                           ; returns NIL
(<= 1 2 3 3)                            ; returns T
(<= 1 2 3 3 2)                          ; returns NIL
(<= "aa" "aa")                          ; error: bad argument type
(setq a 12) (setq b 999.999)            ; set up A and B with values
(<= a b)                                ; returns T
(<= b a)                                ; returns NIL