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Christos
Group Title
C++
Help needed!
The program I need to build is supposed to do this:
http://screencast.com/t/qbp34sVfC
 one year ago
 one year ago
Christos Group Title
C++ Help needed! The program I need to build is supposed to do this: http://screencast.com/t/qbp34sVfC
 one year ago
 one year ago

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Christos Group TitleBest ResponseYou've already chosen the best response.0
// // main.cpp // week544 #include <iostream> #include <cmath> using namespace std; int main() { double a; cin >> a; if (sqrt(a)%1.0 == 0) cout << "It's an integer."; else cout << "It's NOT an integer. Sorry."; return 0; }
 one year ago

Christos Group TitleBest ResponseYou've already chosen the best response.0
This is the code I created for the problem. I don't know why it doesn't run. Can you help me spot the problem?
 one year ago

eSpeX Group TitleBest ResponseYou've already chosen the best response.0
You cannot use the modulus operator with a double.
 one year ago

Christos Group TitleBest ResponseYou've already chosen the best response.0
what is a "modulus operator" ?
 one year ago

eSpeX Group TitleBest ResponseYou've already chosen the best response.0
Use this instead: if (fmod(sqrt(a),1.0) == 0)
 one year ago

Christos Group TitleBest ResponseYou've already chosen the best response.0
wait a min, but why I cant use % with doubles?
 one year ago

eSpeX Group TitleBest ResponseYou've already chosen the best response.0
Because it is designed to take an integer.
 one year ago

Christos Group TitleBest ResponseYou've already chosen the best response.0
hmm hold on lemme try
 one year ago

Anniepoo Group TitleBest ResponseYou've already chosen the best response.0
You might also have trouble with the == it's always iffy to compare doubles. think of all the times a computer's told you 2.0 + 2.0 = 3.99999999
 one year ago
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