Java Math.tan()
方法返回指定double
值的正切值。
語法
double tan(double d)
d
- double
資料型別。double
值的正切值。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 tangent of %.1f degrees is %.4f%n", degrees, Math.tan(radians));
}
}
執行上面範例程式碼,得到以下結果:
The value of pi is 3.1416
The tangent of 45.0 degrees is 1.0000