strictmath

StrictMath類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，而無需進(jìn)行任何中間操作，換句話說，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()方法是靜態(tài)方法，因此可以使用類名進(jìn)行訪問，如果嘗試使用類對象訪問該方法，則不會(huì)收到錯(cuò)誤。

• hypot() method does not throw any exception.

  hypot()方法不會(huì)引發(fā)任何異常。

Syntax:

句法：

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

Parameter(s):

參數(shù)：

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

  double d1和double d2 –表示用于計(jì)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.

該方法的返回類型為double-返回給定參數(shù)的平方根。

Note:

注意：

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

  如果我們在任何參數(shù)中傳遞無窮大，則method返回正無窮大。

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

  如果我們在任何參數(shù)中傳遞NaN，則方法返回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

輸出量

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

翻譯自: https://www.includehelp.com/java/strictmath-hypot-method-with-example.aspx

strictmath

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