=

Type:	-	function (subr)
Source:	-	xlmath.c

Syntax

(= expr1 expr2 ... )

exprN - a numeric expression
returns -  T  if the results of comparing the expressions are all true, NIL otherwise

Description

The '=' [equality] function takes an arbitrary number of numeric arguments. It checks to see if all the numbers are equal.  T  is returned if all of the arguments are numerically equal to each other, NIL is returned otherwise.

Examples

(= 1 1)                  ; returns T
(= 1 2)                  ; returns NIL
(= 1 1.0)                ; returns T
(= 1 1.0 1 (+ 0 1))      ; returns T
(= 1 1.0 1.00001)        ; returns NIL
(= "a" "b")              ; error: bad argument type
(setq a 1) (setq b 1.0)  ; set up A and B with values
(= a b)                  ; returns T

See the  =  function in the XLISP 2.0 manual.

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