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sin() 方法返回指定 double 值的正弦值。
double sin(double d)
d - 任何原始数据类型。
此方法返回参数的正弦值。
public class Main { 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 sine of %.1f degrees is %.4f%n", degrees, Math.sin(radians)); } }
上面示例编译运行结果如下
The value of pi is 3.1416
The sine of 45.0 degrees is 0.7071