Hewlett-packard DV6000

basically, i need to: (a) print a blank (empty) line and the message:"Part I:" and a blank line.

(b) compute z = x * cosh(y) enter the values of x and y from the key board.

print the values of x, y, and z using

printf("%g * cosh(%g) = %g\n", x, y, z);

(c) print a blank (empty) line and the message:"Part II:" and a blank line.

(d) create a table for monthly payments of auto loans.For annual interest rates: annual_rate = 0.050 to 0.080 with

the increment of 0.0025, compute by using a for-loop the

monthly payments for 3-year, 5-year, and 7-year loans.

Print the results in a table on the screen using %12.4f for

the annual interest rates and %15.2f for the payments.i know im supposed to use the formula for equal-monthly-payments:

month_pay = price * i* (1 + i)^n/((1 + i)^n - 1) (2.4)

where i= annual_rate/12. (monthly interest rate),

and n = the total number of payments.To compute (1 + i)^n use pow(1.0 + i, (double)n)

can anyone help?

sorry. it was in c. i think i got it but im not sure. it says theres an error. can someone double check for me? heres the program: nclude <stdio.h>

#include <math.h>

int main(void)

{

double x, y, z;

double annual_rate, n_3, n_5, n_7;

double m_rate, pmt_3, pmt_5, pmt_7, fact;

int k, price;

// Part I

printf("\nPart I:\n\n");

printf("To compute x * cosh(y), enter x and y values: ");

scanf("%lf %lf", &x, &y);/*** 1 ***/

z = x * cosh(y); /*** 1 ***/

printf("%g * cosh(%g) = %g\n", x, y, z); /*** 1 ***/

// Part II

printf("\nPart II:\n\n");

printf("Enter the price (int): $");

scanf("%d", &price); /**** 1 ***/

printf("\nprice = $%d\n\n", price);

printf(" Monthly Payments \n\n");

printf("Ann. Int. Rates 3-year loan 5-year loan 7-year loan\n");

pri-------------\n");

for(k=0; k<=12; k++){

annual_rate = 0.05 + (double)k*0.0025;

m_rate = annual_rate/12.0;

/* for the 3-year loan */

n_3=3.*12.;/* the number of months */

fact = pow(1. + m_rate, n_3);

pmt_3 = (double)price * m_rate * fact/(fact - 1.);

/* for the 5-year loan */

n_5=5.*12.;

fact = pow(1. + m_rate, n_5);

pmt_5 = (double)price * m_rate * fact/(fact - 1.);

/* for the 7-year loan */

n_7=7.*12.;

fact = pow(1. + m_rate, n_7);

pmt_7 = (double)price * m_rate * fact/(fact - 1.);

printf("%12.4f %15.2f %15.2f %15.2f\n",

annual_rate, pmt_3, pmt_5, pmt_7);

}

printf("\n");

exit(0);/* optional */

}

and this is what it is supposed to do: or something like itEnter the price (int): $50000

price = $50000

Monthly Payments

Ann. Int. Rates 3-year loan 5-year loan 7-year loan

--------

0.0500 ....... ...... ......

...... ....... ...... ......

...... ....... ...... ......

0.0800 1566.82 1013.82 779.31

when i do gcc hw.c -lmit says,

/usr/include/iso/math_iso.h:29: error: syntax error before '}' token

/usr/include/iso/math_iso.h:32: error: syntax error before "__huge_val"dunno what im doing wrong. anyone help?

It sounds like the header file "math_iso.h" is screwed up. I can't confirm, however, because I don't have a "math_iso.h" header.

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