Question

Have an option for Degrees or Radians.

If Radians

Write a program that asks the user for an angle, entered in radians. The program should then display the radian as a degree and display sine, cosine, and tangent of the angle. (Use the sin, cos, and tan library functions to determine these values.) The output should be displayed in fixed-point notation, rounded to four decimal places of precision.

If Degrees

Write a program that asks the user for an angle, entered in degrees. The program should then display the degree as a radian and display, sine, cosine, and tangent of the angle. (Use the sin, cos, and tan library functions to determine these values.) The output should be displayed in fixed-point notation, rounded to four decimal places of precision.

for C++

Answer 1

Code:

#include<iostream>
#include<cmath>
#include<iomanip>
using namespace std;
int main()
{
   float radians,degrees;
   int choice;/*Declaring variables*/
   cout<<"1.Radians to degrees"<<endl;
   cout<<"2.Degrees to radians"<<endl;
   cout<<"Enter your Choice: ";
   /*Displaying menu to the user*/
   cin>>choice;/*Here we read users choice*/
   switch(choice)
   {
       case 1:/*When user choice is 1 we convert radians to degrees*/
           cout<<"Enter radian to convert into degrees: ";
           cin>>radians;/*Reading user input*/
           degrees=radians*180/M_PI;/*HEre we convert into degrees*/
           cout<<setprecision(4)<<radians<<" radians = "<<degrees<<"Degrees"<<endl;
           cout<<setprecision(4)<<"Sin("<<degrees<<")="<<sin(degrees)<<endl;
           cout<<setprecision(4)<<"cos("<<degrees<<")="<<cos(degrees)<<endl;
           cout<<setprecision(4)<<"tan("<<degrees<<")="<<tan(degrees);  
           break;/*HEre we print the sin cos and tan values*/
       case 2:/*When user choice is 2 we convert degrees to radians*/
           cout<<"Enter degrees to convert into radians: ";
           cin>>degrees;/*Reading the user input*/
           radians=degrees*M_PI/180;
           cout<<setprecision(4)<<degrees<<" degrees = "<<radians<<" Radians"<<endl;
           cout<<setprecision(4)<<"Sin("<<radians<<")="<<sin(radians)<<endl;
           cout<<setprecision(4)<<"cos("<<radians<<")="<<cos(radians)<<endl;
           cout<<setprecision(4)<<"tan("<<radians<<")="<<tan(radians);  
           break;/*HEre we print the sin cos and tan values*/
       default:
           cout<<"Invalid input";
           break;      
   }
}

Output:

Indentation: