Question about exponents

Here's the code

Code:

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#include <iostream>

using namespace std;

main(){
int x;
x = 5 * 45e-6;
cout<< x;

}

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I need to get an answer with an exponent in it like for example the answer in the program is 0.000225 but i need an answer like this 2.25e-4 how can i do that?... any idea guys.? tnx in advance...

Before anything else, main() returns an int, so declare it as returning an int. Then. x is an int, but you want it to be a double.

Quote:

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I need to get an answer with an exponent in it like for example the answer in the program is 0.000225 but i need an answer like this 2.25e-4 how can i do that?

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Before printing x, set:

Code:

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cout.setf(ios::scientific);

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or you could do

Code:

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cout << scientific << x << endl;

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btw, using an int for these calculations is useless

weeeiiuuhh tnx for the help laserlight and KIBO i really appreciate it...