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comparison scripts/finance/npv.m @ 3407:5e0a0b1cba43

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[project @ 2000-01-06 03:13:55 by jwe]
author jwe
date Thu, 06 Jan 2000 03:14:17 +0000
parents 42cb61dd0248
children ae7adbb591e8
comparison
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3406:772cc0f88f09 3407:5e0a0b1cba43
12 ## 12 ##
13 ## You should have received a copy of the GNU General Public License 13 ## You should have received a copy of the GNU General Public License
14 ## along with this file. If not, write to the Free Software Foundation, 14 ## along with this file. If not, write to the Free Software Foundation,
15 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 15 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16 16
17 ## usage: npv (r, p [, i]) 17 ## -*- texinfo -*-
18 ## @deftypefn {Function File} {} npv (@var{r}, @var{p} [, @var{i}])
19 ## Returns the net present value of a series of irregular (i.e., not
20 ## necessarily identical) payments @var{p} which occur at the ends of @var{n}
21 ## consecutive periods. @var{r} specifies the one-period interest rates and
22 ## can either be a scalar (constant rates) or a vector of the same
23 ## length as @var{p}.
18 ## 24 ##
19 ## Returns the net present value of a series of irregular (i.e., not 25 ## With the optional scalar argument @var{i}, one can specify an initial
20 ## necessarily identical) payments p which occur at the ends of n
21 ## consecutive periods. r specifies the one-period interest rates and
22 ## can either be a scalar (constant rates) or a vector of the same
23 ## length as p.
24 ##
25 ## With the optional scalar argument i, one can specify an initial
26 ## investment. 26 ## investment.
27 ## 27 ##
28 ## Note that rates are not specified in percent, i.e., one has to write 28 ## Note that rates are not specified in percent, i.e., one has to write
29 ## 0.05 rather than 5 %. 29 ## 0.05 rather than 5 %.
30 ## 30 ## @end deftypefn
31 ## See also: irr; pv. 31 ## @seealso{irr, pv}
32 32
33 ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at> 33 ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at>
34 ## Description: Net present value of a series of payments 34 ## Description: Net present value of a series of payments
35 35
36 function v = npv (r, p, i) 36 function v = npv (r, p, i)