strictmath_Java StrictMath sin（）方法与示例

待我称王封你为后i 2023-03-05 13:24 10阅读 0赞

strictmath

## StrictMath类sin()方法 **(**StrictMath Class sin() method**)** ##

*  **sin() method** is available in java.lang package.
    
    **sin()方法**在java.lang包中可用。
 *  **sin() method** is used to return the trigonometric sine of the given parameter in the method.
    
    **sin()方法**用于返回**方法**中给定参数的三角正弦值。
 *  In this method, **sin** stands for trigonometric sine of an angle".
    
    在这种方法中， **sin**代表一个角度的三角正弦”。
 *  **sin() method** is a static method, it is accessible with the class name and if we try to access the method with the class object then we will not get any error.
    
    **sin()方法**是静态方法，可以使用类名进行访问，如果尝试使用类对象访问该方法，则不会收到任何错误。
 *  In this method we pass only radians type argument (i.e. First we convert given argument in radians by using [toRadians() method of StrictMath class][toRadians_ method of StrictMath class] then after we will pass the same variable in sin() method).
    
    在此方法中，我们仅传递弧度类型的参数(即，首先，我们使用[StrictMath类的toRadians()方法][toRadians_ method of StrictMath class]将给定的参数转换为弧度，然后在sin()方法中传递相同的变量)。
 *  **sin() method** does not throw any exception at the time of returning trigonometric sine of an angle.
    
    在返回角度的三角正弦时， **sin()方法**不会引发任何异常。

**Syntax:**

**句法：**

public static double sin(double d);

**Parameter(s):**

**参数：**

*  double d – represents the value whose trigonometric sine is to be returned.
    
    double d –表示要返回其三角正弦值的值。

**Return value:**

**返回值：**

The return type of this method is double – it returns the trigonometric sine of given angle.

这种方法的返回类型是双 -它返回给定的角度的正弦值。

**Note:**

**注意：**

*  If we pass NaN, the method returns NaN.
    
    如果传递NaN，则该方法返回NaN。
 *  If we pass an infinity, the method returns NaN.
    
    如果传递无穷大，则该方法返回NaN。
 *  If we pass a value whose absolute value is 0, the method returns 0.
    
    如果传递绝对值为0的值，则该方法返回0。

**Example:**

**例：**

// Java program to demonstrate the example of 
    // sin(double d) method of StrictMath class.
    
    public class Sin {
        
        public static void main(String[] args) {
        
            // variable declarations
            double a1 = 100;
            double a2 = Math.PI / 2;
            double a3 = 0;
    
            // Display previous value of a1, a2 and a3
            System.out.println("a1: " + a1);
            System.out.println("a2: " + a2);
            System.out.println("a3: " + a3);
    
            // By using toRadians() method is used to convert absolute to radians
            a2 = StrictMath.toRadians(a2);
    
            // Display the value of a2 in radians form
            System.out.println("StrictMath.toRadians(a2): " + a2);
    
            // Here we will find trignometric sine of a2 
            // by using sin() method
            System.out.println("StrictMath.sin(a2): " + StrictMath.sin(a2));
    
            // Here , we will get 0 because we are passing parameter 
            // whose absolute value is 0
            System.out.println("StrictMath.sin(a3): " + StrictMath.sin(a3));
        }
    }

**Output**

**输出量**

a1: 100.0
    a2: 1.5707963267948966
    a3: 0.0
    StrictMath.toRadians(a2): 0.027415567780803774
    StrictMath.sin(a2): 0.027412133592044294
    StrictMath.sin(a3): 0.0

> 翻译自: [https://www.includehelp.com/java/strictmath-sin-method-with-example.aspx][https_www.includehelp.com_java_strictmath-sin-method-with-example.aspx]

strictmath

[toRadians_ method of StrictMath class]: https://www.includehelp.com/java/strictmath-toradians-method-with-example.aspx
[https_www.includehelp.com_java_strictmath-sin-method-with-example.aspx]: https://www.includehelp.com/java/strictmath-sin-method-with-example.aspx