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

2 votes174 views1 answer
Get elements of tuple c++
C++
0 vote170 views1 answer
Codeforces Pangram in c++
C++
0 vote156 views1 answer
Int main ( ) { int i,n; cin>>n; i=n; while(i>=1) { i=i+5; i=i-6; } }
C++
0 vote142 views1 answer
Convert c program to c ++ online
C++
1 vote146 views1 answer
C++ merge sort
C++
0 vote152 views1 answer
C++ write to file in directory
C++
1 vote171 views3 answers
('Failed to import pydot. You must `pip install pydot` and install graphviz (https://graphviz.gitlab.io/download/), ', 'for `pydotprint` to work.')
C++
0 vote156 views1 answer
Inconsequential meaning
C++
0 vote181 views1 answer
Opencv rgb to gray c++
C++
5 votes165 views5 answers
Convert char to int c++
C++