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cpp:cmath:ldexp

Table of Contents

ldexp

    double ldexp(double , int exp);

Returns x times 2 raised to n

cpp Sourcecode Example

#include <iostream> /* including standard library */
#include <cmath> /* including math library */
 
using namespace std;
int main ( void ) 
{
 
  //cout.setf(ios::fixed, ios::floatfield);
  cout.precision(8);
 
  cout << "4.2 raised to 2 is " <<  ldexp(4.2, 2) << endl;
  return 0;
}

output

 4.2 raised to 2 is 16.8
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cpp/cmath/ldexp.txt · Last modified: 2012/10/12 18:35 (external edit)

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