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C++
Help needed!
The program I need to build is supposed to do this:
http://screencast.com/t/qbp34sVfC
 11 months ago
 11 months ago
C++ Help needed! The program I need to build is supposed to do this: http://screencast.com/t/qbp34sVfC
 11 months ago
 11 months ago

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ChristosBest 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; }
 11 months ago

ChristosBest 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?
 11 months ago

eSpeXBest ResponseYou've already chosen the best response.0
You cannot use the modulus operator with a double.
 11 months ago

ChristosBest ResponseYou've already chosen the best response.0
what is a "modulus operator" ?
 11 months ago

eSpeXBest ResponseYou've already chosen the best response.0
Use this instead: if (fmod(sqrt(a),1.0) == 0)
 11 months ago

ChristosBest ResponseYou've already chosen the best response.0
wait a min, but why I cant use % with doubles?
 11 months ago

eSpeXBest ResponseYou've already chosen the best response.0
Because it is designed to take an integer.
 11 months ago

ChristosBest ResponseYou've already chosen the best response.0
hmm hold on lemme try
 11 months ago

AnniepooBest 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
 11 months ago
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