import java.util.Scanner;
public class trig_calc {
public static void main(String[] args) {
System.out.println("Welcome to the trigonometry calculator!");
Scanner scan = new Scanner(System.in);
//Prompt user for which trigonometry function
System.out.println("What trigonometry function do you want to use? :"
+ "\n 1 Sine"
+ "\n 2 Cosine"
+ "\n 3 Tan"
+ "\n 4 Sineh"
+ "\n 5 Cosh"
+ "\n 6 Tanh"
+ "\n 7 Arcsine"
+ "\n 8 Arccosine"
+ "\n 9 Arctan\n");
int userChoice = scan.nextInt();
switch(userChoice){
case 1: sine(); break;
case 2: cosine(); break;
case 3: tan(); break;
case 4: sineh(); break;
case 5: cosh(); break;
case 6: tanh(); break;
case 7: asine(); break;
case 8: acos(); break;
case 9: atan(); break;
default: System.out.println("Invalid Choice.\n Exiting");
}
}
public static double sine(){
// Ask for user input
System.out.print("Enter an angle in degrees: ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(s);
// convert the value to radians
double valueRadians = Math.toRadians(value);
// get the sine of the angle
double sineValue = Math.sin(valueRadians);
System.out.println("sine of " + s + " is " + sineValue);
return sineValue;
}
public static double cosine(){
// Ask for user input
System.out.print("Enter an angle in degrees: ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(s);
// convert the value to radians
double valueRadians = Math.toRadians(value);
// get the cosine of the angle
double cosineValue = Math.cos(valueRadians);
System.out.println("cosine of " + s + " is " + cosineValue);
return cosineValue;
}
public static double tan(){
// Ask for user input
System.out.print("Enter a number : ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(s);
// convert the value to radians
double valueRadians = Math.toRadians(value);
// get the tan of the angle
double tanValue = Math.tan(valueRadians);
System.out.println("tan of " + s + " is " + tanValue);
return tanValue;
}
public static double sineh(){
// Ask for user input
System.out.print("Enter a number : ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine(); //changed from s to input for clear reading
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(s);
// get the sinh of the angle
double sinehValue = Math.sinh(value);
System.out.println("sinh of " + s + " is " + sinehValue);
return sinehValue;
}
public static double cosh(){
// Ask for user input
System.out.print("Enter your number: ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String input = scan.nextLine();
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(input);
// get the cosh of the angle
double cosinehValue = Math.cosh(value);
System.out.println("cosh of " + input + " is " + cosinehValue);
return cosinehValue;
}
public static double tanh(){
// Ask for user input
System.out.print("Enter your number: ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String input = scan.nextLine();
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(input);
// get the tanh of the angle
double tanhValue = Math.tanh(value);
System.out.println("tanh of " + input + " is " + tanhValue);
return tanhValue;
}
public static double asine(){
// Ask for user input
System.out.print("Enter your number: ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// get the arcsine of the angle
double asineValue = Math.asin(Double.parseDouble(s));
System.out.println("Arcsine of " + s + " is " + asineValue + " radians");
return asineValue;
}
public static double acos(){
// Ask for user input
System.out.print("Enter your number ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// get the arccos of the user input
double acosineValue = Math.acos(Double.parseDouble(s));
System.out.println("Arccosine of " + s + " is " + acosineValue + " radians");
return acosineValue;
}
public static double atan(){
// Ask for user input
System.out.print("Enter your number: ");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// get the arctan of the user input
double atanValue = Math.atan(Double.parseDouble(s));
System.out.println("Arctangent of " + s + " is " + atanValue + " radians");
return atanValue;
}
}
