1-

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

Syntax

(1- expr)

expr - integer or floating point number/expression
returns - the number minus one

Description

The '1-' [decrement] function subtracts one from a number and returns the result.

Examples

(1- 1)     ; returns 0
(1- 99.6)  ; returns 98.6
(1- 1 2)   ; error: too many arguments

See the  1-  function in the XLISP 2.0 manual.

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