C++ program trouble

This is a discussion on C++ program trouble within the C++ Programming forums, part of the General Programming Boards category; Hi, I am a beginning student of C++ and I am having trouble with the whole programming process. Here's, my ...

  1. #1
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    C++ program trouble

    Hi,
    I am a beginning student of C++ and I am having trouble with the whole programming process. Here's, my latest trouble I am now writing a program to calculate mortgage payment with interest rates from 6% to 10%, starting at 5 years to 30 years with 5 year increments. Formula: m = r*l*f / 12 *f / 12* (f - 1); where f = (1 + r/12) * 12*y.
    Here is a sample of my code:

    float r; //variable for interest rate
    int l; //variable for loan amount
    int y; //variable for the number of years
    float mgt; //mortgage
    int pow;
    float f = pow((1 + r/12),(12 *y));
    float f1 = pow((1 + r/12),(12*y-1));

    for (r = .06; r <=.10; r++)
    {
    for(y = 5; y <=30; y++)

    my trouble is when I compile and run my program I keeping get an error message relating to pow-term does not evaluate to a function. What does this mean?

  2. #2
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    Re: C++ program trouble

    Originally posted by senrab
    my trouble is when I compile and run my program I keeping get an error message relating to pow-term does not evaluate to a function. What does this mean?
    Did you #include <math> in your program?

  3. #3
    _B-L-U-E_ Betazep's Avatar
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    >>>int pow;


    take that out.


    put this in...

    #include<cmath>
    using namespace std;

    +++++

    for (r = .06; r <=.10; r++)

    increment adds a whole integer 1. How is this going to work?
    Blue

  4. #4
    Mayor of Awesometown Govtcheez's Avatar
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    WTF? How has this thread been up for 20 minutes and already have 1500 views?

  5. #5
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    int pow; ?????
    pow is a function in math.h

  6. #6
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    few things....first, pow is a function, don't need to initialize it....just include the math.h library...second, for your for loop, your going to have to do an r+=.01 instead of r++....each time the loop operates, itll had 1.0, not .01 like you want it to.

  7. #7
    Pursuing knowledge confuted's Avatar
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    Originally posted by Govtcheez
    WTF? How has this thread been up for 20 minutes and already have 1500 views?
    Looks like someone was bored and went crazy with the refresh button
    Away.

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    can anybody help me

    you must include math..


    can anybody help me in my programming???

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