CALCULATOR.H HEADER FILE WHICH IS IMPORTANT TO USE IN THE PROJECT

/*CALCULATOR.H*/
#ifndef CALCULATOR_H_INCLUDED
#define CALCULATOR_H_INCLUDED
#include <iostream>
using namespace std;
class ScientificCalculator
{
private:
 int a;
 int b;
public:
 void add();//addition
 void sub();//subtraction
 void divide();//division
 void multiply();//multiplication
 void fraction();//fraction
 void radians();//conversion of degree to radian
 void trigonometry();//includes sin cos tan trigonometric functions
 void logarithm();//logarithm
 void exponential();//exponential
 void power();//power
 void logarithm10();//log10
 void matrix_addition();//matrix addition
 void matrix_subtraction();//matrix subtraction
 void matrix_multiplication();//matrix multiplication
 void modulus();
 void percentage();//percentage
 void decimal();//binary to decimal
 void hexadecimal();//binary to hexadecimal
 void binary();//decimal to binary
 void area();//area finding
 void volume();//volume finding
 void factorial();//factorial of a number
 void permutation();//permutation by the help of the arrays
 void combination();//finding the combination
 void integration();//by the help of integrals
 void differentiation();//differential equations
};
#endif // CALCULATOR_H_INCLUDED