What do you mean you're having "issues" calling the functions? You don't know how? So what then, you "found some code", have no idea how to call a function, and want us to explain it to you? Grab a C book.There. Now you know how to call a function and pass it an argument. Try staying awake in class, or actually reading your book instead of just ripping off code you find to get a grade.Code:void foo( int bar ) { ...do stuff... } ... int x; foo( x );
Quzah.
Hope is the first step on the road to disappointment.
I'm taking an online class. So all of this is just out of the book. So sorry I'm asking so many question?
But you're not asking questions. Explain, in a full paragraph, exactly what the problem is. You know, like as if you needed help and actually were trying to let someone know what was wrong.
Quzah.
Hope is the first step on the road to disappointment.
ok here is my issues.
Lets start with the first issues. Im still having issues running my funcations. I have tried to changed the funcation. I get the error message 27 C:\Dev-Cpp\tmitchellwk2.cpp [Warning] statement is a reference, not call, to function `Calculate'
I also added a retrun statement at the end of each function. Ther return statement says wat information I want to pass to the next funcation. Not sure if those are correct.
Code:#include <stdio.h> #include <math.h> double CollectInput ( double i, double n, double Numberofmonths, double PaymentNumber, int count); double Calculate (int n, double a, double i, int PaymentNumber, int count); double Amortization (double a, double InterestRate, double LoanBlance, double PaymentNumber, double AmountPrinciple, double AmountInterest, int InterestRate); main () { int TermLoan, // length of the loan PaymentNumber, //number of payments made Numberofmonths, //Number of months in the loan count, n,c; //Letters used for the calculations double AmountPrinciple, //Amount paid on principle AmountInterest, //amount paid to interest LoanBlance, //amount owed on loan\ count, CurrentBlance, LoanAmount, //amount of the loan InterestRate, //interest rate on loan a,i, PaymentAmount, //amount paid to loan CollectInput (); Calcaulate (); Amortization (); printf ("hit enter to end"); getchar (); getchar (); return 0; } //**************************************************************** //Start of the function to collect data //**************************************************************** double CollectInput (double a, double i, int n, int Numberofmonths, double PaymentNumber, int count) { int TermLoan, c ; double LoanAmount, InterestRate, CurrentBlance; while (scanf("%lf%d%lf", &LoanAmount, &TermLoan, &InterestRate) != 3 || (LoanAmount < 0 || TermLoan < 0 || InterestRate < 0 )) { while ((c = getchar()) != '\n' && c != EOF); printf ("Please re-enter in loan amount, Term of Loan in months and Interest Rate.\n"); } CurrentBlance = LoanAmount; Numberofmonths = TermLoan; i = InterestRate/ 100; n = Numberofmonths; a = CurrentBlance; PaymentNumber = 0; count = 0; return i, n, a, PaymentNumber, count; } //end of collect data //******************************************************************** //Start of Calculate function //************************************************************* double Calculate (int n, double a, double i, int PaymentNumber, int count) { double PaymentAmount, AmountInterest, AmountPrinciple, LoanAmount, LoanBlance, InterestRate; int Numberofmonths; PaymentAmount = ((i/12*a)/(1-pow((1+(i/12)),-n))); while(PaymentNumber < Numberofmonths) { PaymentNumber++; //Start number of months for amortization schedule count++; AmountInterest = a * (i/12); AmountPrinciple = PaymentAmount - AmountInterest; LoanBlance = a - AmountPrinciple; a = LoanBlance; return a, InterestRate, PaymentNumber, LoanBlance, PaymentAmount, AmountPrinciple, AmountInterest; }//end of while loop } //end of Calculate Function //********************************************************************* //State of print function //************************************************************ double Amortization(double a, double LoanBlance, double PaymentNumber, double PaymentAmount, double AmountPrinciple, double AmountInterest, int InterestRate) { printf ("\amortization Schedule\n"); printf ("_____________________\n"); printf ("CurrentBlance %.2f\n", a); printf ("InterestRate %.2f\n", InterestRate); printf ("PaymentNumber %d\n", PaymentNumber); printf ("LoanBlance %.2f\n", LoanBlance); printf ("PaymentAmount %.2f\n", PaymentAmount); printf ("AmountPrinciple %.2f\n", AmountPrinciple); printf ("AmountInterest %.2f\n", AmountInterest); printf ("_______________________\n\n"); } //end of Amortization print function
Ok, so now go back and look at my example. A function, such as foo above, has the following parts:
1 - a return value (one item it returns), or void (to return nothing).
2 - A name.
3 - A list of arguments you pass it, or void (to pass nothing).
4 - A block of its content, surrounded by a pair of { }
Like so:This function:Code:int foo( char c, float f ) { ...stuff here... }
1 - Returns one integer (functions only ever return one thing).
2 - Has the name 'foo'.
3 - Takes a 'char' and a 'float' as arguments.
4 - Has the function body wrapped in { }
Now to call the function, you'd do something like:Here, we would put the returned integer into x, pass it the character 'c', and the floating point value 2.345 as its arguments. In short, if you have any arguments other than void, then to call that function, you must supply all of those expected arguments.Code:x = foo( 'c', 2.345 );
Quzah.
Hope is the first step on the road to disappointment.
ok im having issues getting my funcation to read from the mail program. Here is the error message that I"m getting. Can you help me to figure it out please.
C:\Dev-Cpp\tmitchellwk2.cpp In function `int main()':
11 C:\Dev-Cpp\tmitchellwk2.cpp too many arguments to function `double Amortization(double, double, double, int, double, double)'
34 C:\Dev-Cpp\tmitchellwk2.cpp at this point in file
Am I trying to read in less data then what i say i have
Code:#include <stdio.h> #include <math.h> double CollectInput ( double i, int n, double Numberofmonths, double PaymentNumber, int count); double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, double PaymentAmount, int count, double AmountInterest, double AmountPrinciple, double LoanBlance );; double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount); main () { int TermLoan, // length of the loan PaymentNumber, //number of payments made Numberofmonths, //Number of months in the loan count, n,c; //Letters used for the calculations double AmountPrinciple, //Amount paid on principle AmountInterest, //amount paid to interest LoanBlance, //amount owed on loan\ count, CurrentBlance, LoanAmount, //amount of the loan InterestRate, //interest rate on loan y,x,u, a,i, PaymentAmount; //amount paid to loan CollectInput (i, n, Numberofmonths, PaymentNumber, count); Calculate (n, a, i, PaymentAmount, PaymentNumber, Numberofmonths, PaymentAmount, count, AmountInterest, AmountPrinciple, LoanBlance ); Amortization (a, InterestRate, LoanAmount, PaymentNumber, AmountPrinciple, AmountInterest, InterestRate); printf ("hit enter to end"); getchar (); getchar (); return 0; } //**************************************************************** //Start of the function to collect data //**************************************************************** double CollectInput (double a, double i, int n, int Numberofmonths, double PaymentNumber, int count) { int TermLoan, c ; double LoanAmount, InterestRate, CurrentBlance; while (scanf("%lf%d%lf", &LoanAmount, &TermLoan, &InterestRate) != 3 || (LoanAmount < 0 || TermLoan < 0 || InterestRate < 0 )) { while ((c = getchar()) != '\n' && c != EOF); printf ("Please re-enter in loan amount, Term of Loan in months and Interest Rate.\n"); } CurrentBlance = LoanAmount; Numberofmonths = TermLoan; i = InterestRate/ 100; n = Numberofmonths; a = CurrentBlance; PaymentNumber = 0; count = 0; return i, n, a, PaymentNumber, count; } //end of collect data //******************************************************************** //Start of Calculate function //************************************************************* double Calculate (int n, double a, double i, int PaymentNumber, int count) { double PaymentAmount, AmountInterest, AmountPrinciple, LoanAmount, LoanBlance, InterestRate; int Numberofmonths; PaymentAmount = ((i/12*a)/(1-pow((1+(i/12)),-n))); while(PaymentNumber < Numberofmonths) { PaymentNumber++; //Start number of months for amortization schedule count++; AmountInterest = a * (i/12); AmountPrinciple = PaymentAmount - AmountInterest; LoanBlance = a - AmountPrinciple; a = LoanBlance; return a, InterestRate, PaymentNumber, LoanBlance, PaymentAmount, AmountPrinciple, AmountInterest; }//end of while loop } //end of Calculate Function //********************************************************************* //State of print function //************************************************************ double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount) { printf ("\amortization Schedule\n"); printf ("_____________________\n"); printf ("CurrentBlance %.2f\n", a); printf ("InterestRate %.2f\n", InterestRate); printf ("PaymentNumber %d\n", PaymentNumber); printf ("LoanBlance %.2f\n", LoanBlance); printf ("PaymentAmount %.2f\n", PaymentAmount); printf ("AmountPrinciple %.2f\n", AmountPrinciple); printf ("AmountInterest %.2f\n", AmountInterest); printf ("_______________________\n\n"); } //end of Amortization print function
ok i got the above error taken care of. KNow I'm getting this error
C:\DOCUME~1\EMITCH~1\LOCALS~1\Temp\ccA9caaa.o(.tex t+0x50) In function `main':
[Linker error] undefined reference to `CollectInput(double, int, double, double, int)'
[Linker error] undefined reference to `Calculate(int, double, double, double, double, double, double, int, double, double, double)'
C:\DOCUME~1\EMITCH~1\LOCALS~1\Temp\ccA9caaa.o(.tex t+0x50) ld returned 1 exit status
any ideas
Yes, count the number of parameters you're passing, and compare it with the number the function is expecting (the definition of it, not just the prototype).
Don't you get any warnings telling you that the prototype and definition do not agree?
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
in still having issues reading them funcation any idea here is the currect code
Code:#include <stdio.h> #include <math.h> double CollectInput ( double a, double i, int n, int Numberofmonths, int PaymentNumber, int count); double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance); double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount); main () { int TermLoan, // length of the loan PaymentNumber, //number of payments made Numberofmonths, //Number of months in the loan count, n,c; //Letters used for the calculations double AmountPrinciple, //Amount paid on principle AmountInterest, //amount paid to interest LoanBlance, //amount owed on loan\ count, CurrentBlance, LoanAmount, //amount of the loan InterestRate, //interest rate on loan y,x,u, a,i, PaymentAmount; //amount paid to loan printf ("start of program"); CollectInput (a, i, n, Numberofmonths, PaymentNumber, count); Calculate (n, a, i, PaymentAmount, PaymentNumber, Numberofmonths, count, AmountInterest, AmountPrinciple, LoanBlance ); Amortization (a, InterestRate, LoanAmount, PaymentNumber, AmountPrinciple, AmountInterest, LoanBlance, PaymentAmount); printf ("hit enter to end"); getchar (); getchar (); return 0; } //**************************************************************** //Start of the function to collect data //**************************************************************** double CollectInput ( double a, double i, int n, int Numberofmonths, int PaymentNumber, int count) { int TermLoan, c ; double LoanAmount, InterestRate, CurrentBlance; while (scanf("%lf%d%lf", &LoanAmount, &TermLoan, &InterestRate) != 3 || (LoanAmount < 0 || TermLoan < 0 || InterestRate < 0 )) { while ((c = getchar()) != '\n' && c != EOF); printf ("Please re-enter in loan amount, Term of Loan in months and Interest Rate.\n"); } CurrentBlance = LoanAmount; Numberofmonths = TermLoan; i = InterestRate/ 100; n = Numberofmonths; a = CurrentBlance; PaymentNumber = 0; count = 0; return i, n, a, PaymentNumber, count; } //end of collect data //******************************************************************** //Start of Calculate function //************************************************************* double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance) { PaymentAmount = ((i/12*a)/(1-pow((1+(i/12)),-n))); while(PaymentNumber < Numberofmonths) { PaymentNumber++; //Start number of months for amortization schedule count++; AmountInterest = a * (i/12); AmountPrinciple = PaymentAmount - AmountInterest; LoanBlance = a - AmountPrinciple; a = LoanBlance; return a, PaymentNumber, LoanBlance, PaymentAmount, AmountPrinciple, AmountInterest; }//end of while loop } //end of Calculate Function //********************************************************************* //State of print function //************************************************************ double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount) { printf ("\amortization Schedule\n"); printf ("_____________________\n"); printf ("CurrentBlance %.2f\n", a); printf ("InterestRate %.2f\n", InterestRate); printf ("PaymentNumber %d\n", PaymentNumber); printf ("LoanBlance %.2f\n", LoanBlance); printf ("PaymentAmount %.2f\n", PaymentAmount); printf ("AmountPrinciple %.2f\n", AmountPrinciple); printf ("AmountInterest %.2f\n", AmountInterest); printf ("_______________________\n\n"); } //end of Amortization print function
OK, here is your code with what passes for formatting
I get these warningsCode:#include <stdio.h> #include <math.h> double CollectInput(double a, double i, int n, int Numberofmonths, int PaymentNumber, int count); double Calculate(int n, double a, double i, double PaymentAmount, double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance); double Amortization(double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount); main() { int TermLoan, // length of the loan PaymentNumber, //number of payments made Numberofmonths, //Number of months in the loan count, n, c; //Letters used for the calculations double AmountPrinciple, //Amount paid on principle AmountInterest, //amount paid to interest LoanBlance, //amount owed on loan\ count, CurrentBlance, LoanAmount, //amount of the loan InterestRate, //interest rate on loan y, x, u, a, i, PaymentAmount; //amount paid to loan printf("start of program"); CollectInput(a, i, n, Numberofmonths, PaymentNumber, count); Calculate(n, a, i, PaymentAmount, PaymentNumber, Numberofmonths, count, AmountInterest, AmountPrinciple, LoanBlance); Amortization(a, InterestRate, LoanAmount, PaymentNumber, AmountPrinciple, AmountInterest, LoanBlance, PaymentAmount); printf("hit enter to end"); getchar(); getchar(); return 0; } //**************************************************************** //Start of the function to collect data //**************************************************************** double CollectInput(double a, double i, int n, int Numberofmonths, int PaymentNumber, int count) { int TermLoan, c; double LoanAmount, InterestRate, CurrentBlance; while (scanf("%lf%d%lf", &LoanAmount, &TermLoan, &InterestRate) != 3 || (LoanAmount < 0 || TermLoan < 0 || InterestRate < 0)) { while ((c = getchar()) != '\n' && c != EOF); printf ("Please re-enter in loan amount, Term of Loan in months and Interest Rate.\n"); } CurrentBlance = LoanAmount; Numberofmonths = TermLoan; i = InterestRate / 100; n = Numberofmonths; a = CurrentBlance; PaymentNumber = 0; count = 0; return i, n, a, PaymentNumber, count; } //end of collect data //******************************************************************** //Start of Calculate function //************************************************************* double Calculate(int n, double a, double i, double PaymentAmount, double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance) { PaymentAmount = ((i / 12 * a) / (1 - pow((1 + (i / 12)), -n))); while (PaymentNumber < Numberofmonths) { PaymentNumber++; //Start number of months for amortization schedule count++; AmountInterest = a * (i / 12); AmountPrinciple = PaymentAmount - AmountInterest; LoanBlance = a - AmountPrinciple; a = LoanBlance; return a, PaymentNumber, LoanBlance, PaymentAmount, AmountPrinciple, AmountInterest; } //end of while loop } //end of Calculate Function //********************************************************************* //State of print function //************************************************************ double Amortization(double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount) { printf("\amortization Schedule\n"); printf("_____________________\n"); printf("CurrentBlance %.2f\n", a); printf("InterestRate %.2f\n", InterestRate); printf("PaymentNumber %d\n", PaymentNumber); printf("LoanBlance %.2f\n", LoanBlance); printf("PaymentAmount %.2f\n", PaymentAmount); printf("AmountPrinciple %.2f\n", AmountPrinciple); printf("AmountInterest %.2f\n", AmountInterest); printf("_______________________\n\n"); } //end of Amortization print function
The first thing is that return a,b does NOT return two values.Code:$ gcc -W -Wall new.c new.c:18: warning: return type defaults to `int' new.c: In function `main': new.c:19: warning: unused variable `TermLoan' new.c:22: warning: unused variable `c' new.c:26: warning: unused variable `CurrentBlance' new.c:28: warning: unused variable `y' new.c:28: warning: unused variable `x' new.c:28: warning: unused variable `u' new.c: In function `CollectInput': new.c:71: warning: left-hand operand of comma expression has no effect new.c:71: warning: left-hand operand of comma expression has no effect new.c:71: warning: left-hand operand of comma expression has no effect new.c:71: warning: left-hand operand of comma expression has no effect new.c: In function `Calculate': new.c:96: warning: left-hand operand of comma expression has no effect new.c:96: warning: left-hand operand of comma expression has no effect new.c:96: warning: left-hand operand of comma expression has no effect new.c:96: warning: left-hand operand of comma expression has no effect new.c:96: warning: left-hand operand of comma expression has no effect new.c:98: warning: control reaches end of non-void function new.c: At top level: new.c:104: warning: unused parameter 'LoanAmount' new.c: In function `Amortization': new.c:120: warning: control reaches end of non-void function
If you want to return multiple results from a function, you basically have to use pointers
Note in foo() that the integer is passed by value, so anything you do to it inside the function does NOT affect the value in main().Code:#include <stdio.h> void foo ( int a ) { printf("Enter a number\n"); scanf("%d", &a); printf("You entered %d\n", a ); } void bar ( int *a ) { printf("Enter a number\n"); scanf("%d", a); printf("You entered %d\n", *a ); } int main ( ) { int result = 0; printf( "Result = %d\n", result ); foo ( result ); printf( "Result = %d\n", result ); bar ( &result ); printf( "Result = %d\n", result ); return 0; } $ gcc -W -Wall -ansi new.c $ ./a.exe Result = 0 Enter a number 123 You entered 123 Result = 0 Enter a number 456 You entered 456 Result = 456
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
ok. so whqt you are saying is that i need to write a funcation to call the data from one funcation and pass it to the next. wouldn't it have been eaiser to use an array to hold the data then print it. am i al least gettin on the right path. I just having an issues understand read a funcation in. I there somewhere that i can go to get a better understanding. I understand that i have to define the funcation. Then we need to read it in. That is where I am lost. Why can't I just write the funcation into main and it read the funcation. Isn't a funcation kind of the same as a procedure in pascal. Do i have my funcations doing too many things. Or is there a simplier way to write them that would not be so hard.
Code:#include <stdio.h> #include <math.h> double CollectInput (double a, double i, int n, int Numberofmonths, int PaymentNumber, int count); double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance); double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount); main () { int TermLoan, // length of the loan PaymentNumber, //number of payments made Numberofmonths, //Number of months in the loan count, n,c; //Letters used for the calculations double AmountPrinciple, //Amount paid on principle AmountInterest, //amount paid to interest LoanBlance, //amount owed on loan\ count, CurrentBlance, LoanAmount, //amount of the loan InterestRate, //interest rate on loan returnedValue, a,i, PaymentAmount; //amount paid to loan printf ("start of program"); CollectInput (a, i, n, Numberofmonths, PaymentNumber, count); returnedValue = CollectInput (a, i, n, Numberofmonths, PaymentNumber, count); Calculate (n, a, i, PaymentAmount, PaymentNumber, Numberofmonths, count, AmountInterest, AmountPrinciple, LoanBlance ); Amortization (a, InterestRate, LoanAmount, PaymentNumber, AmountPrinciple, AmountInterest, LoanBlance, PaymentAmount); printf ("hit enter to end"); getchar (); getchar (); return 0; } //**************************************************************** //Start of the function to collect data //**************************************************************** double CollectInput (double a, double i, int n, int Numberofmonths, int PaymentNumber, int count) { int TermLoan, c ; double LoanAmount, InterestRate, CurrentBlance; while (scanf("%lf%d%lf", &LoanAmount, &TermLoan, &InterestRate) != 3 || (LoanAmount < 0 || TermLoan < 0 || InterestRate < 0 )) { while ((c = getchar()) != '\n' && c != EOF); printf ("Please re-enter in loan amount, Term of Loan in months and Interest Rate.\n"); } CurrentBlance = LoanAmount; Numberofmonths = TermLoan; i = InterestRate/ 100; n = Numberofmonths; a = CurrentBlance; PaymentNumber = 0; count = 0; return i, n, a, PaymentNumber, count; } //end of collect data //******************************************************************** //Start of Calculate function //************************************************************* double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance) { PaymentAmount = ((i/12*a)/(1-pow((1+(i/12)),-n))); while(PaymentNumber < Numberofmonths) { PaymentNumber++; //Start number of months for amortization schedule count++; AmountInterest = a * (i/12); AmountPrinciple = PaymentAmount - AmountInterest; LoanBlance = a - AmountPrinciple; a = LoanBlance; return a, PaymentNumber, LoanBlance, PaymentAmount, AmountPrinciple, AmountInterest; }//end of while loop } //end of Calculate Function //********************************************************************* //State of print function //************************************************************ double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount) { printf ("\amortization Schedule\n"); printf ("_____________________\n"); printf ("CurrentBlance %.2f\n", a); printf ("InterestRate %.2f\n", InterestRate); printf ("PaymentNumber %d\n", PaymentNumber); printf ("LoanBlance %.2f\n", LoanBlance); printf ("PaymentAmount %.2f\n", PaymentAmount); printf ("AmountPrinciple %.2f\n", AmountPrinciple); printf ("AmountInterest %.2f\n", AmountInterest); printf ("_______________________\n\n"); } //end of Amortization print function
Ok so i cahanged it again and put my return valuse so that it would pass teh data. Then I wrote a while statment to call teh funcations let me know if im on the right track. I still cant get passed it returnedValue statments in the program when i run it so i know that i still have something off here is the new code
Code:#include <stdio.h> #include <math.h> double CollectInput (double a, double i, int n, int Numberofmonths, int PaymentNumber, int count); double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance); double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount); main () { char data; int TermLoan, // length of the loan PaymentNumber, //number of payments made Numberofmonths, //Number of months in the loan count, n,c; //Letters used for the calculations double AmountPrinciple, //Amount paid on principle AmountInterest, //amount paid to interest LoanBlance, //amount owed on loan\ count, CurrentBlance, LoanAmount, //amount of the loan InterestRate, //interest rate on loan a,i, PaymentAmount; //amount paid to loan printf ("This startes you loan program"); double returnedValue = CollectInput (a, i, n, Numberofmonths, PaymentNumber, count); double returedValue1 = Calculate (n, a, i, PaymentAmount, PaymentNumber, Numberofmonths, count, AmountInterest, AmountPrinciple, LoanBlance); printf ("Do you have data to add?"); scanf ("%c", &data); while (data == 'y' || data == 'Y'); { CollectInput (a, i, n, Numberofmonths, PaymentNumber, count); Calculate (n, a, i, PaymentAmount, PaymentNumber, Numberofmonths, count, AmountInterest, AmountPrinciple, LoanBlance); Amortization (a, InterestRate, LoanAmount, PaymentNumber, AmountPrinciple, AmountInterest, LoanBlance, PaymentAmount); } printf ("hit enter to end"); getchar (); getchar (); return 0; } //**************************************************************** //Start of the function to collect data //**************************************************************** double CollectInput (double a, double i, int n, int Numberofmonths, int PaymentNumber, int count) { int TermLoan, c ; double LoanAmount, InterestRate, CurrentBlance; while (scanf("%lf%d%lf", &LoanAmount, &TermLoan, &InterestRate) != 3 || (LoanAmount < 0 || TermLoan < 0 || InterestRate < 0 )) { while ((c = getchar()) != '\n' && c != EOF); printf ("Please re-enter in loan amount, Term of Loan in months and Interest Rate.\n"); } CurrentBlance = LoanAmount; Numberofmonths = TermLoan; i = InterestRate/ 100; n = Numberofmonths; a = CurrentBlance; PaymentNumber = 0; count = 0; return i, n, a, PaymentNumber, count; } //end of collect data //******************************************************************** //Start of Calculate function //************************************************************* double Calculate (int n,double a, double i,double PaymentAmount,double PaymentNumber, double Numberofmonths, int count, double AmountInterest, double AmountPrinciple, double LoanBlance) { PaymentAmount = ((i/12*a)/(1-pow((1+(i/12)),-n))); while(PaymentNumber < Numberofmonths) { PaymentNumber++; //Start number of months for amortization schedule count++; AmountInterest = a * (i/12); AmountPrinciple = PaymentAmount - AmountInterest; LoanBlance = a - AmountPrinciple; a = LoanBlance; return a, PaymentNumber, LoanBlance, PaymentAmount, AmountPrinciple, AmountInterest; }//end of while loop } //end of Calculate Function //********************************************************************* //State of print function //************************************************************ double Amortization (double a, double InterestRate, double LoanAmount, int PaymentNumber, double AmountPrinciple, double AmountInterest, double LoanBlance, double PaymentAmount) { printf ("\amortization Schedule\n"); printf ("_____________________\n"); printf ("CurrentBlance %.2f\n", a); printf ("InterestRate %.2f\n", InterestRate); printf ("PaymentNumber %d\n", PaymentNumber); printf ("LoanBlance %.2f\n", LoanBlance); printf ("PaymentAmount %.2f\n", PaymentAmount); printf ("AmountPrinciple %.2f\n", AmountPrinciple); printf ("AmountInterest %.2f\n", AmountInterest); printf ("_______________________\n\n"); return 0; } //end of Amortization print function
>> double Amortization
Doesn't really have to return anything. It's just printin'.
>> main()
should return something -> int main ()
>> return i, n, a, PaymentNumber, count;
... erm no. Just no! Google or search for passing by reference, or even make a struct of the info to make the parameters look nicer.
how can i do that using funcations
It will not allow me to have double Amortization with out anything behind it it tells me that it is not defined.
