Calculating 3rd side of right triangle

[Zyzz]

Hi, I am extremely new to c++ this is my first language ever and I need some help
That is what I have but I get an error c2661 'pow' no overload function takes 1 arguments. It is down in sideC = sqrt[(pow(sideOne) + pow(sideTwo))]; What is wrong?

#include<iostream>
#include<cmath>
using namespace std;

float getSideOne();
float getSideTwo();
float calcSideC(float sideOne, float sideTwo);
void showSideC (float sideC);



int main()
{
	float sideOne;
	float sideTwo;
	float sideC;

	sideOne = getSideOne();
	sideTwo = getSideTwo();
	sideC = calcSideC(sideOne, sideTwo);
	showSideC(sideC);
	
	
	
	
	return 0;
}

float getSideOne()
{
	float sideOne;
	cout << "Enter the length of the first side\n";
	cin >> sideOne;
	return sideOne;
}

float getSideTwo()
{
	float sideTwo;
		cout << "Enter the length of the second side\n";
		cin >> sideTwo;
		return sideTwo;
}

float calcSideC(float sideOne, float sideTwo)
{
	float sideC;
	sideC = sqrt[(pow(sideOne) + pow(sideTwo))];
	return sideC;
}

void showSideC(float sideC)
{
	cout << "Side C is equal to "<< sideC << "";
}

[Parasin]

I think your problem lies here sideC = sqrt[(pow(sideOne) + pow(sideTwo))];

Try replacing those brackets with parenthesis.

[Zyzz]

Parasin, I still get the same error when I do that


documents\visual studio 2010\projects\hw_7a\hw_7a\hw_7a.cpp(56): error C2661: 'pow' : no overloaded function takes 1 arguments

[booradley60]

pow takes two parameters, not one. You want to raise sideOne to some power (in this case, presumably using the pythagorean theorem, 2):
pow(sideOne, 2) Same goes for sideTwo. In general, pow(x, y) returns x to the yth power. Also, is there any reason you're using single-precision float instead of declaring your variables as double?

http://www.cplusplus.com/reference/cmath/pow/

[RabMac]

sideC = sqrt((pow(sideOne,2) + pow(sideTwo,2)));

Update with this line in your calcSideC () function

[Zyzz]

Thank you so much! I haven't used a pow() function in a while so I sort of forgot. I was thinking of using double first but I didn't know which would be better

I am 18 and this is my first programming class ever. Is it okay to struggle? I feel so stupid sometimes.

[RabMac]

I'm new to programming as well mate and it is difficult as you need to adjust the way you think about problems and in addition you are learning a new language.

I personally think you have your programme properly formatted, which many beginners don't.

[Zyzz]

Thanks RabMac, my teacher focuses heavy on good coding style. I am taking intro to c++ programming at a CC right now. We go faster than all the other CCs in the area and other areas I believe for this class. Most intro to c++ classes finish at learning to write to/read a file, we do that about the 4th or 5th week so double the pace. It gets overwhelming but I love it. Wish I was amazing at it though

[Chervil]

The compile issue may be resolved, but the use of the pow() function here is somewhat of a sledgehammer to crack a walnut. Internally it will probably get the log, multiply by the power and then get the antilog, when all that is required is to multiply a number by itself.

[Zyzz]

What would you have recommended, Chervil?

[Chervil]

Well, this would have been my preference:

    sideC = sqrt(sideOne*sideOne + sideTwo*sideTwo);

Though as I say, its a preference rather than right or wrong.