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  1. //Cameron Pham             CS1A                       Chapter 3, P. 147, #20
  2. //
  3. /*******************************************************************************
  4.  * 
  5.  * Calculate Trigonometric Values
  6.  * _____________________________________________________________________________
  7.  * 
  8.  * This program asks the user to enter an angle in radians. Then, it calculates 
  9.  * and displays the sine, cosine, and tangent of the angle. The results are
  10.  * displayed using fixed-point notation and rounded to four decimal places.
  11.  * _____________________________________________________________________________
  12.  * 
  13.  * INPUT
  14.  *	angle: Angle entered in radians
  15.  * 
  16.  * OUTPUT
  17.  *  sine:	 The sine of the angle
  18.  *	cosine:  The cosine of the angle
  19.  *	tangent: The tangent of the angle
  20.  * 
  21.  ******************************************************************************/
  22. #include <iostream>
  23. #include <iomanip>
  24. #include <cmath>
  25. using namespace std;
  26.  
  27. int main() 
  28. {
  29. 	// Declare the variable used to store the angle entered by the user.
  30. 	double angle;
  31.  
  32. 	// Ask the user to enter an angle in radians.
  33. 	cout << "Enter an angle in radians: ";
  34. 	cin >> angle;
  35. 	cout << endl;
  36.  
  37. 	// Display the results using fixed-point notation with four digits after the
  38. 	// decimal point.
  39. 	cout << fixed << setprecision(4);
  40.  
  41. 	// Calculate and display the sine, cosine, and tangent of the angle.
  42. 	cout << "Sine: " << sin(angle) << endl;
  43. 	cout << "Cosine: " << cos(angle) << endl;
  44. 	cout << "Tangent: " << tan(angle) << endl;
  45.  
  46. 	return 0;
  47. }
Success #stdin #stdout 0s 5320KB
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Enter an angle in radians: 
Sine: 0.8415
Cosine: 0.5403
Tangent: 1.5574
https://ideone.com/ztYZZ6
Chapter 3: p. 146, #20
language:
C++ (gcc 8.3)
created:
56 minutes ago
visibility:
public

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