1*
2 * C++ Program to Illustrate Trigonometric functions
3 */
4#include <iostream>
5#include <iomanip>
6#include <cmath>
7const double PI = 3.14159265;
8
9int main()
10{
11 double degrees, radians;
12
13 std::cout << "Enter angle in degrees ";
14 std::cin >> degrees;
15 // Trigonometric functions accept angles in radians
16 radians = degrees * PI / 180.0;
17 std::cout << "Value of trigonometric ratios " << std::endl;
18 std::cout << "cos(radians) = " << std::setprecision(3)
19 << cos(radians) << std::endl;
20 std::cout << "sin(radians) = " << std::setprecision(3)
21 << sin(radians) << std::endl;
22 std::cout << "tan(radians) = " << std::setprecision(3)
23 << tan(radians) << std::endl;
24 return 0;
25}