Pi in c++

#define _USE_MATH_DEFINES // must include this!
 
#include <cmath>
#include <iostream>
 
int main() { 
  // M_PI = 3.14159265358979323846;
  std::cout << M_PI << " " << M_E << " " << M_SQRT2 << endl;
  return 0;
}

Source: quantstart.com

C++ pi float

const float pi = 2 * acos(0.0f);

Long pi in c++

typedef long double ld;
const ld pi = 3.1415926535897932384626433832795;

Similar codes

1 vote183 views1 answer
Linked list with classes c++
C++
0 vote185 views2 answers
Insert image using set atribute
C++
0 vote210 views1 answer
Switch cout print with a prameter c++
C++
3 votes210 views2 answers
Cpp map insert
C++
0 vote210 views1 answer
Log base 2 in c++
C++
0 vote173 views1 answer
Cuda locks
C++
1 vote197 views1 answer
Print 5 table in c++
C++
0 vote223 views1 answer
Export gcc g++
C++
0 vote199 views1 answer
Power of two c++
C++
0 vote166 views1 answer
What algorithm does bitcoin use
C++