C++ Program to Demonstrate math.h Library Functions
1.Trigonometric Functions
Code:
/*Trigonometric functions*/
#include<iostream>
#include<math.h>
#define PI 3.14159265
using namespace std;
class Trigo{
double val;
public:
void getData(){
cout <<"\n Enter the Value\n" << endl;
cin >>val;
}
void TrigoFun(){
cout<<endl<<"Sine of " << val << " is :" <<(val*PI/180);;
cout<<endl<<"cosine of " << val << " is :" <<cos(val*PI/180.0);
cout<<endl<<"arc tangent(atan) of " << val << " is :" <<atan(val)*180/PI;
cout<<endl<<"arc tangent(aTan2) of " << val << " is :" <<atan2(val,-30.0)*180/PI;
cout<<endl<<"====================================================";
}
};
int main(){
Trigo obj;
obj.getData();
obj.TrigoFun();
return 0;
}
/*Exponential and logarithmic functions*/
#include<iostream>
#include<math.h>
using namespace std;
class Expo{
float val;
public:
void getData(){
cout<<"\n Enter the value\n";
cin>>val;
}
void expoResult(){
cout<<"\n The exponential value of = " << val <<exp(val);
cout<<"\n Log Value of = " << val <<log(val);
cout<<"\n Log2 Value of = " << val <<log2(val);
cout<<endl<<"====================================================";
}
};
int main(){
Expo e;
e.getData();
e.expoResult();
return 0;
}
Sample Output:
3. Power functions
Code:
/*Power functions*/
#include<iostream>
#include<math.h>
using namespace std;
class Power{
float val1,val2;
public:
void getData(){
cout<<"\n Enter the value\n";
cin>>val1>>val2;
}
void powFun(){
cout<<endl<<"\n "<<val1<<"^" << val2 <<"= " << pow(val1,val2);
cout<<endl<<"\n Square Root of "<< val1 << " is " << sqrt(val1) << " and "<< val2 <<" is " <<sqrt(val2);
cout<<endl<<"\n Cubic Root of Value1 = " << cbrt(val1);
cout<<endl<<"\n The Hypotenuse is = " << hypot(val1,val2);
cout<<endl<<"====================================================";
}
};
int main(){
Power p;
p.getData();
p.powFun();
return 0;
}
Sample Output:
4. Rounding and Remainder Functions
Code:
/*Rounding and Remainder Functions*/
#include<iostream>
#include<math.h>
#include<fenv.h>
using namespace std;
class Round{
double value;
public:
void getData(){
cout<<"\n Enter the value\n";
cin>>value;
}
void roundResult(){
cout<<"\n Ceil Value = "<<ceil(value);
cout<<"\n floor Value = "<<floor(value);
cout<<"\n trunc Value = "<<trunc(value);
cout<<"\n round Value = "<<round(value);
cout<<"\n rint Value = "<<rint(value);
cout<<"\n remainder Value = "<<remainder(value,4.2);
cout<<"\n nearbyint Value = "<<nearbyint(value);
cout<<endl<<"====================================================";
}
};
int main(){
Round obj;
obj.getData();
obj.roundResult();
return 0;
}
Sample Output:
5. Minimum, Maximum, Difference Functions
Code:
/*Minimum, Maximum, Difference Functions*/
#include<iostream>
#include<math.h>
using namespace std;
class Diff{
double val1,val2;
public:
void getData(){
cout<<"\n Enter the Values\n";
cin>>val1>>val2;
}
void diffResult(){
cout<<"\n fdim Value of " << val1 <<" and " << val2 << " is= " << fdim(val1,val2);
cout<<"\n fmax Value of " << val1 <<" and " << val2 << " is= " << fmax(val1,val2);
cout<<"\n fmin Value of " << val1 <<" and " << val2 << " is= " << fmin(val1,val2);
cout<<endl<<"====================================================";
}
};
int main(){
Diff d;
d.getData();
d.diffResult();
return 0;
}
Sample Output:
6. Comparison Macro Functions
Code:
/*Comparison Macro Functions*/
#include<iostream>
#include<math.h>
using namespace std;
class Comparison{
double val1,val2;
public:
void getData(){
cout<<"\n Enter the Values\n";
cin>>val1>>val2;
}
void comparisonResult(){
cout <<"\n 1 for true and 0 for false";
cout<<"\n isgreater value = "<<isgreater(val1,val2);
cout<<"\n islessequal Value = "<<islessequal(val1,val2);
cout<<"\n isunordered Value = "<<isunordered(val1,val2);
cout<<endl<<"====================================================";
}
};
int main(){
Comparison obj;
obj.getData();
obj.comparisonResult();
return 0;
}
Sample Output:
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