#include <iostream>
#include <cmath>
using namespace std;
double deg(double deg1);
int angle (double ag1);
int main ()
{
	double  d3,arc2;;
	d3 = 3.141592 ; // PI value
	cout<<"\n---working with math acos----";
	//degrees to radian conversion)
	// radians = degrees * PI /180
	arc2 = acos(.5) * 180/d3; 
	cout<<"\n  acos(.5) * 180/d3 angle " << arc2; 
	arc2 = acos(.45) * 180/3.14159; 
	cout<<"\n acos(.45) * 180/d3 angle " << arc2; 
	//
	cout<<"\n--using for loop acos--\n";
	for(double db1= 0.0; db1 < 0.292; db1 += 0.050)
	{
		arc2 = acos(db1) * 180/3.14159; 
		cout<<"\n cos "<< db1 << " is\t : angle " << arc2; 
	}
	cout<<"\n---working with math acos and asin----";
	cout<<"\n---Angle 90--- "; 
	// for |_ 90
	arc2 = acos(0.0) * 180/d3;
	cout <<"\n arc2 = acos(0.0) * 180/d3;  angle = " << arc2;
	arc2 = asin(1.0) * 180/d3;
	cout <<"\n arc2 = asin(1.0) * 180/d3;  angle = " << arc2;
	//for |_ 45
	cout<<"\n---Angle 45--- "; 
	arc2 = acos(0.7071) * 180/d3;
	cout <<"\n arc2 = acos(0.0) * 180/d3;  angle = " << arc2;
	arc2 = asin(.7071) * 180/d3;
	cout <<"\n arc2=asin(.7071) * 180/d3;  angle = " << arc2;
  return 0;
}