campo-sirio/gfm/compsimp.c

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/* DEC *CompoundInterestSimple(nper, intr, pv, pmt, fv, begend, opt)
*
* ARGUMENT
* int begend, opt;
* DEC *nper, *intr, *pv, *pmt, *fv;
*
* DESCRIPTION
* Given four variables involved in compound interest, solves for the
* fifth one. The variables are the number of periods nper, the percentage
* interest rate per period intr, the present value pv, the periodic payment
* pmt, and the future value fv. begend specifies whether payments take
* place at the beginning or the end of each month, while opt tells which
* variable to solve for.
* This function allows for a partial first period during which simple
* interest is computed.
*
* SIDE EFFECTS
* Changes value of unknown variable.
*
* RETURNS
* In case of success, the result is returned.
*
* POSSIBLE ERRORS
* GM_NULLPOINTER
* GM_ARGVAL
*
*
* AUTHOR
* Jared Levy
* Copyright (C) 1988-1990 Greenleaf Software Inc. All rights reserved.
*
* MODIFICATIONS
*
*
*/
#include <stdio.h>
#include "gm.h"
#include "gmsystem.h"
DEC *CompoundInterestSimple(nper, intr, pv, pmt, fv, begend, opt)
int begend, opt;
DEC *nper, *intr, *pv, *pmt, *fv;
{
DEC *p;
_MacStart(GM_COMPSIMP);
p=_CompoundAux(2, &opt, nper, intr, pv, pmt, fv, begend, opt);
_MacRet(p);
}