Java cos()方法

2019-10-16 22:23:08

Java Math.cos()方法返回指定double引數值的餘弦值。

語法

double cos(double d)

引數

  • d - 此方法接受double資料型別的值。

返回值

  • 此方法返回指定double值的餘弦值。

範例

public class Test { 

   public static void main(String args[]) {
      double degrees = 45.0;
      double radians = Math.toRadians(degrees);

      System.out.format("The value of pi is %.4f%n", Math.PI);
      System.out.format("The cosine of %.1f degrees is %.4f%n", degrees, Math.cos(radians));
   }
}

執行上面範例程式碼,得到以下結果:

The value of pi is 3.1416
The cosine of 45.0 degrees is 0.7071