NAME
    forall - to evaluate a function for all values of a list or matrix

SYNOPSIS
    forall(x, y)

TYPES
    x           list or matrix
    y           string

    return      null value

DESCRIPTION
    In forall(x,y), y is the name of a function; that function
    is performed in succession for all elements of x.  This is similar
    to modify(x, y) but x is not changed.

EXAMPLE
    ; global n = 0
    ; define s(a) {n += a;}
    ; A = list(1,2,3,4)
    ; forall(A, "s")
    ; n
            10

    ; define e(a) {if (iseven(a)) print a;}
    ; forall(A, "e")
            2
            4

LIMITS
    none

LINK LIBRARY
    none

SEE ALSO
    modify

## Copyright (C) 1999  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:   1995/07/10 02:09:31
## 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/
