#ifndef TASCHENRECHNER_H
#define TASCHENRECHNER_H

//add function
double add(double a, double b);

//minus function
double minus(double a, double b);

//multiply function
double multiply(double a, double b);

//divide function
double divide(double a, double b);

//get input and check if its a number
double testForNumber();

//get input and check if its a operator
char testForOperator();

// Square root function
double squareRootFunction(double x);

//..
// Trigonometric functions
double sineFunction(double angle);

double cosineFunction(double angle);

double tangentFunction(double angle);

//..
// Logarithmic functions
double logarithmFunction(double x);

double naturalLogarithmFunction(double x);

double logarithmBase2Function(double x);

//..
// Exponential function
double exponentialFunction(double x);

// ..
// Bitwise AND function
int bitwiseAND(int num1, int num2);

// Bitwise OR function
int bitwiseOR(int num1, int num2);

// Bitwise XOR function
int bitwiseXOR(int num1, int num2);

int mode(int userChoice);

int displayMenu();

#endif // TASCHENRECHNER_H