Question

How to output float number with scientific format in C++

Answer 1

#include <iostream>
#include <iomanip>

using std::cout;
using std::endl;

int main()
{
	float d = 0.0001234;

	cout << setiosflags(std::ios::scientific) << d << endl;


	return 0;
}


/*
run:

1.234000e-04

*/

 

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