Calculator Help

[Ch1156]

Ok so im writing a calculator and im working on a function that calculates the mean, and it seems to be off and im not sure why, i entered

23
45
32
78
Answer: 28.75

and when i check it on a different calculator, the mean is 44.5 so what is wrong?

void Calculator::FindMean()
{
    vector<float> V_storeNumbers;
    float inputNumber;
    int number = 1;

    cout << "Enter Numbers, enter stop to stop" << endl;

    while(inputNumber != -1)
    {
        cout << "Number " << number++ << ": ";
        cin >> inputNumber;
        V_storeNumbers.push_back(inputNumber);
    }

    V_storeNumbers.pop_back();

    for(int j = 0; j < 1; j++)
    {
        cout << V_storeNumbers[j] + V_storeNumbers[j] / V_storeNumbers.size() << endl;
    }
}

[aleonard]

Hi Ch1156, could you give us the whole code of interest, together with the output ?
Also, I would rather not use you stop method, it's a bit unsafe when asking for an int, to write a string.

Finally I don't quite understand the purpose of the last for loop, could you explain what you do there ?

[naraku9333]

what you are basically doing is cout << 23 + 23 / 4 << endl; order of operations it is 23 + 5.75

What you want to do is sum all the values in the vector and then divide by the size.

[Ch1156]

"What you want to do is sum all the values in the vector"

How do i do that? I am really unsure how i add all the values from the vector. @aleonard the last for loop outputs all the elements, it was there during debugging when i was making sure all numbers where being assigned to an element, it will be removed when this function is complete.

[Ch1156]

Nevermind i figured it out