NAME

abs - absolute value function

SYNOPSIS

v = abs(NumExpr)

DESCRIPTION

Abs returns the absolute value of its argument.  The argument must be a numeric expression. 

EXAMPLE

The program
	pi = 3.14159265
	for n = -90 to 90 step 10
		value = sin(n * pi / 180)
		absvalue = abs(value)
		print "The absolute value of "; value;_
		  " is "; absvalue
	next
produces
	The absolute value of -1  is  1 
	The absolute value of -.9848077  is  .9848077 
	The absolute value of -.9396926  is  .9396926 
	The absolute value of -.8660254  is  .8660254 
	The absolute value of -.7660444  is  .7660444 
	The absolute value of -.6427876  is  .6427876 
	The absolute value of -.5  is  .5 
	The absolute value of -.3420201  is  .3420201 
	The absolute value of -.1736482  is  .1736482 
	The absolute value of  0  is  0 
	The absolute value of  .1736482  is  .1736482 
	The absolute value of  .3420201  is  .3420201 
	The absolute value of  .5  is  .5 
	The absolute value of  .6427876  is  .6427876 
	The absolute value of  .7660444  is  .7660444 
	The absolute value of  .8660254  is  .8660254 
	The absolute value of  .9396926  is  .9396926 
	The absolute value of  .9848077  is  .9848077 
	The absolute value of  1  is  1 

from The Basmark QuickBASIC Programmerís Manual by Lawrence Leinweber