Mercurial > octave
view scripts/finance/fvl.m @ 3191:e4f4b2d26ee9
[project @ 1998-10-23 05:43:59 by jwe]
author | jwe |
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date | Fri, 23 Oct 1998 05:44:01 +0000 |
parents | |
children | f8dde1807dee |
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## Copyright (C) 1995, 1996, 1997 Kurt Hornik ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 2, or (at your option) ## any later version. ## ## This program 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 ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with this file. If not, write to the Free Software Foundation, ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ## usage: fvl (r, n, l) ## ## Returns the future value at the end of n periods of an initial lump ## sum investment l, given a per-period interest rate r. ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at> ## Description: Future value of an initial lump sum investment function v = fvl (r, n, l) if (nargin != 3) usage ("fvl (r, n, l)"); endif if !(is_scalar (r) && (r > -1)) error ("fvl: r has to be a scalar > -1"); elseif !(is_scalar (n) && (n > 0)) error ("fvl: n has to be a positive scalar"); elseif !is_scalar (l) error ("fvl: l has to be a scalar"); endif v = l * (1 + r)^n; endfunction