NAME
    ilog - floor of logarithm to specified integer base
    ilogn - floor of logarithm to specified integer base

SYNOPSIS
    ilog(x, b)
    ilogn(x, b)

TYPES
    x           nonzero real
    b           integer greater than 1

    return      integer

DESCRIPTION
    Returns the greatest integer n for which b^n <= abs(x).

    The ilogn function is an alias for ilog.

EXAMPLE
    ; print ilog(2, 3), ilog(8, 3), ilog(8.9, 3), ilog(1/8, 3)
    0 1 1 -2

    ; print ilogn(2, 3), ilogn(8, 3), ilogn(8.9, 3), ilogn(1/8, 3)
    0 1 1 -2

LIMITS
    x > 0
    b > 1

LINK LIBRARY
    long zlog(ZVALUE x, ZVALUE b)

SEE ALSO
    ilog10, ilog2, ln, log, log2, logn

## Copyright (C) 1999,2023  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:   1995/10/25 04:03:45
## 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/
