Java Math.cos()
方法返回指定double
引數值的餘弦值。
語法
double cos(double d)
d
- 此方法接受double
資料型別的值。double
值的餘弦值。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