strictmath_Java StrictMath hypot（）方法与示例

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StrictMath类hypot()方法 (StrictMath Class hypot() method)

• hypot() method is available in java.lang package.

  hypot()方法在java.lang包中可用。

• hypot() method is used to return the square root of sqrt(sq(d1)+sq(d2)) without any intermediate operations or in other words it returns the sqrt(sq(d1)+sq(d2)).

  hypot()方法用于返回sqrt(sq(d1)+ sq(d2))的平方根，而无需进行任何中间操作，换句话说，它返回sqrt(sq(d1)+ sq(d2))。

• hypot() method is a static method so it is accessible with the class name and if we try to access the method with the class object then we will not get an error.

  hypot()方法是静态方法，因此可以使用类名进行访问，如果尝试使用类对象访问该方法，则不会收到错误。

• hypot() method does not throw any exception.

  hypot()方法不会引发任何异常。

Syntax:

句法：

public static double hypot(double d1 , double d2);

Parameter(s):

参数：

• double d1 , double d2 – represent the values which are being used to calculate hypot.

  double d1和double d2 –表示用于计算hypot的值。

Return value:

返回值：

The return type of this method is double – it returns the square root of the given argument.

该方法的返回类型为double-返回给定参数的平方根。

Note:

注意：

• If we pass infinity in any of the arguments, method returns the positive infinity.

  如果我们在任何参数中传递无穷大，则method返回正无穷大。

• If we pass NaN in any of the arguments, method returns NaN.

  如果我们在任何参数中传递NaN，则方法返回NaN。

Example:

例：

// Java program to demonstrate the example // of hypot(double d1 , double d2) method of // StrictMath class.public class Hypot {public static void main(String[] args) {// variable declarationsdouble d1 = 7.0 / 0.0;double d2 = 5.0;double d3 = 10.0;// Display previous value of d1,d2 and d3 System.out.println("d1: " + d1);System.out.println("d2: " + d2);System.out.println("d3: " + d3);// Here , we will get (Infinity) because we are // passing parameter whose value is (d2,d1)System.out.println("StrictMath.hypot(d2,d1): " + StrictMath.hypot(d2, d1));// Here , we will get (sqrt(sq(d2)+sq(d3))) because we are // passing parameter whose value is (d2,d3)System.out.println("StrictMath.hypot(d2,d3): " + StrictMath.hypot(d2, d3));} }

Output

输出量

d1: Infinity d2: 5.0 d3: 10.0 StrictMath.hypot(d2,d1): Infinity StrictMath.hypot(d2,d3): 11.180339887498949

翻译自: https://www.includehelp.com/java/strictmath-hypot-method-with-example.aspx

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