如何讓我的計算器以度數而不是弧度計算

Question

我已經堅持了很長時間。 如何讓我的計算器以度數而不是弧度計算。 我試過 Math.toDegrees 但它沒有用。 如果您決定提供幫助，謝謝。

導入 java.util.Scanner；

public class Main {

 public static void main(String[] args) {
     
  Scanner scanner = new Scanner(System.in);
  

  // END USER INPUT VALUE IN DEGREES
  System.out.println("Please input a value to recieve the Trigonemetric value in degrees ");

  double degrees = scanner.nextDouble();
  
  double sineOfAngle = Math.sin(degrees); 
  double cosOfAngle = Math.cos(degrees); 
  double tanOfAngle = Math.tan(degrees);

  System.out.println();
  System.out.println("The Sine of " + degrees + " degrees is : "
    + sineOfAngle);
  System.out.println("The Cosine of " + degrees + " degrees is : "
    + cosOfAngle);
  System.out.println("The Tangent of " + degrees + " degrees is : "
    + tanOfAngle);
    
 }
}

Answer 1

使用Math.toRadians() ，您想將度數轉換為弧度，因為數學三角函數參數應該以弧度為單位：

public class Main {

 public static void main(String[] args) {
     
  Scanner scanner = new Scanner(System.in);
  

  // END USER INPUT VALUE IN DEGREES
  System.out.println("Please input a value to recieve the Trigonemetric value in degrees ");

  double degrees = scanner.nextDouble();
  
  double sineOfAngle = Math.sin(Math.toRadians(degrees)); 
  double cosOfAngle = Math.cos(Math.toRadians(degrees)); 
  double tanOfAngle = Math.tan(Math.toRadians(degrees));

  System.out.println();
  System.out.println("The Sine of " + degrees + " degrees is : "
    + sineOfAngle);
  System.out.println("The Cosine of " + degrees + " degrees is : "
    + cosOfAngle);
  System.out.println("The Tangent of " + degrees + " degrees is : "
    + tanOfAngle);
    
 }
}

Answer 2

為什么你需要那個？ 編程語言將始終使用弧度進行計算。 您可以接受以度為單位的輸入，然后將其轉換為弧度，進行計算並將其轉換回輸出的度數。