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  1. //Micah Krosby						CS1A					 Ch. 3, P. 147, # 20
  2. /*******************************************************************************
  3.  * 
  4.  * CALCULATE TRIGONOMETRIC IDENTITIES OF AN ANGLE
  5.  * _____________________________________________________________________________
  6.  * 
  7.  * This program finds the sine, cosine and tangent of an angle in radians.
  8.  * 
  9.  * FORMULAE-
  10.  *	sine = sin(angle)
  11.  *	cosine = cos(angle)
  12.  *	tangent = tan(angle)
  13.  * _____________________________________________________________________________
  14.  * 
  15.  * INPUT-
  16.  *	radians		: Angle in radians
  17.  * 
  18.  * OUTPUTS-
  19.  *	sine		: Sine of angle
  20.  *	cosine		: Cosine of angle
  21.  *	tangent		: Tangent of angle
  22.  * 
  23. *******************************************************************************/
  24.  
  25. #include <iostream>
  26. #include <iomanip>
  27. #include <cmath>
  28. using namespace std;
  29.  
  30. int main() {
  31. 	float radians;		//INPUT- Angle in radians
  32. 	float sine;			//OUTPUT- Sine of angle
  33. 	float cosine;		//OUTPUT- Cosine of angle
  34. 	float tangent;		//OUTPUT- Tangent of angle
  35.  
  36. 	//Initialize input variable
  37. 	cout << "Enter angle in radians" << endl;
  38. 	cin >> radians;
  39.  
  40. 	//Calculate output variables
  41. 	sine = sin(radians);
  42. 	cosine = cos(radians);
  43. 	tangent = tan(radians);
  44.  
  45. 	//Formatted output
  46. 	cout << "Sine is " << fixed << setprecision(4) << sine << endl;
  47. 	cout << "Cosine is " << fixed << setprecision(4) << cosine << endl;
  48. 	cout << "Tangent is " << fixed << setprecision(4) << tangent << endl;
  49. 	return 0;
  50. }
Success #stdin #stdout 0s 5284KB
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stdin
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1.57
stdout
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Enter angle in radians
Sine is 1.0000
Cosine is 0.0008
Tangent is 1255.8483
https://ideone.com/MJOOPd
homework 3.20
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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