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tan() 方法返回指定 double 值的切线值。
double tan(double d)
d - 双精度数据类型。
返回指定 double 值的切线值。
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 tangent of %.1f degrees is %.4f%n", degrees, Math.tan(radians)); } }
上面示例编译运行结果如下
The value of pi is 3.1416
The tangent of 45.0 degrees is 1.0000