54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
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#include <stdio.h>
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#include "gm.h"
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void getdec(char *,DEC *);
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void main(void);
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static DEC *payintr[500], *payprin[500], *balance[500];
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void main()
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{
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int nper, nyear, begend, i;
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DECP pv, pmt, intr, aintr;
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extern DEC *payintr[500], *payprin[500], *balance[500];
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printf("Amortization schedule\n");
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getdec("Amount of loan (positive): ", pv);
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getdec("Percentage annual interest rate: ", aintr);
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printf("Length of loan (years): ");
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dscanf("%d", &nyear);
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getdec("Monthly payment (positive): ", pmt);
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nper = nyear * 12;
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DivideDecimalByInt(intr, aintr, 12);
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begend = GM_END;
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AllocateDecimalArray(payintr, nper+1);
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AllocateDecimalArray(payprin, nper+1);
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AllocateDecimalArray(balance, nper+1);
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AmortizeTable(payintr, payprin, balance, intr,
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pv, pmt, begend, nper);
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printf("%15s%20s%20s%20s\n", "Payment #", "Interest",
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"Principal", "Balance");
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for (i=1; i<=nper; i++)
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dprintf("%15d%20v%20v%20v\n", i, payintr[i],
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payprin[i], balance[i]);
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FreeDecimalArray(payintr);
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FreeDecimalArray(payprin);
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FreeDecimalArray(balance);
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}
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void getdec(str, x)
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char *str;
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DEC *x;
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{
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int i;
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do {
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printf("%s", str);
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i = dscanf("%t", x);
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} while (i<1);
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}
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