NAME
    ltol - "leg to leg", third side of a right-angled triangle with
		unit hypotenuse, given one other side

SYNOPSIS
    ltol(x, [,eps])

TYPES
    x		real
    eps		nonzero real, defaults to epsilon()

    return	real

DESCRIPTION
    Returns sqrt(1 - x^2) to the nearest multiple of eps.
    The default value for eps is epsilon().

EXAMPLE
    ; print ltol(0.4, 1e-6), hypot(0.5, 1e-6)
    0.6 0.866025

LIMITS
    abs(x) <= 1
    eps != 0

LINK LIBRARY
    NUMBER *qlegtoleg(NUMBER *q1, *epsilon, BOOL wantneg)

SEE ALSO
    hypot

## Copyright (C) 1999,2021,2023  Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL.  You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
##
## Under source code control:	1995/10/05 04:52:27
## File existed as early as:	1995
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/