sqrt

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

Syntax

(sqrt expr)

expr - floating point number or expression
returns - the square root of the number

Description

The 'sqrt' function calculates the square root of 'expr' and returns this result.

Examples

(sqrt 1.0)    ; returns 1
(sqrt 2.0)    ; returns 1.41421
(sqrt 3.0)    ; returns 1.73205
(sqrt 4.0)    ; returns 2
(sqrt 5.0)    ; returns 2.23607
(sqrt -1.0)   ; error: square root of a negative number
(sqrt 2)      ; error: bad integer operation

Common Lisp: Common Lisp allows for integer numbers, which XLISP does not support for 'sqrt'.

See the sqrt function in the XLISP 2.0 manual.

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