## [cc7e24]: financial / inst / fvl.m  Maximize  Restore  History

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 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42``` ```## Copyright (C) 1995-1998, 2000, 2002, 2005-2007 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 3 of the License, 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 program; if not, see . ## -*- texinfo -*- ## @deftypefn {Function File} {} fvl (@var{r}, @var{n}, @var{l}) ## Return the future value at the end of @var{n} periods of an initial ## lump sum investment @var{l}, given a per-period interest rate ## @var{r}. ## ## Note that the rate @var{r} is specified as a fraction (i.e., 0.05, ## not 5 percent). ## @end deftypefn function v = fvl (r, n, l) if (nargin != 3) print_usage (); endif if (! (isscalar (r) && r > -1)) error ("fvl: r has to be a scalar > -1"); elseif (! (isscalar (n) && n > 0)) error ("fvl: n has to be a positive scalar"); elseif (! isscalar (l)) error ("fvl: l has to be a scalar"); endif v = l * (1 + r)^n; endfunction ```