Having Trouble/I do not know what is wrong.

[Engineering]

Well, I'm trying to make a Permutation/Combination calculator and I'm getting weird errors when trying to compile like so:

Undefined symbols for architecture x86_64:
"combination(int, int)", referenced from:
_main in probability-e55a71.o
(maybe you meant: __Z11combinationiii)
"permutation(int, int, int)", referenced from:
_main in probability-e55a71.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation


I'm not sure if this is a library issue or what.

[Bdanielz]

your prototypes

int combination(int factn, int facty);
int permutation(int factn, int facty, int factr);

do not match your functions

int permutation(int factn, int facty)
{
	int p1;
	p1 = factn/facty;
	cout << "The permutation is: " << p1 << endl;
	
	return(0);
	
	
}

int combination(int factn, int factr, int facty)
{
	int p2;
	p2=factn/(factr*facty);
	cout << "The combination is: " << p2 << endl;
	
	return(0);
	
}

also this is wrong

		cout << "Either n or r was a negative number, Please retry with " <<
		cout << "positive numbers only." << endl;

[Engineering]

I fixed the prototypes, but now I'm having problem with the wrong outputs, I could use a fresh set of eyes on this. Also, What do you mean about

cout << "Either n or r was a negative number, Please retry with " <<
cout << "positive numbers only." << endl;

this being wrong?

Basically, the code isn't doing the factorial the right way, I don't believe. I'm not sure if my function is set up correctly to use the n, r, or y variable in the factorial function. Here is the new code.