strictmath

StrictMath類log10()方法 (StrictMath Class log10() method)

• log10() method is available in java.lang package.

  log10()方法在java.lang包中可用。

• log10() method is used to return the logarithm of the given (base 10) of the given argument in the method.

  log10()方法用于返回方法中給定參數的給定(以10為底)的對數。

• log10() 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 any error.

  log10()方法是靜態方法，因此可以使用類名進行訪問，如果嘗試使用類對象訪問該方法，則不會出現任何錯誤。

• log10() method does not throw any exception.

  log10()方法不會引發任何異常。

Syntax:

句法：

public static double log10(double d);

Parameter(s):

參數：

• double d – represents the double type argument.

  double d –表示double類型的參數。

Return value:

返回值：

The return type of this method is double – it returns the logarithm (base 10) of the given argument.

此方法的返回類型為double-返回給定參數的對數(以10為底)。

Note:

注意：

• If we pass NaN, method returns NaN.

  如果傳遞NaN，則方法返回NaN。

• If we pass a value which is equal to 10*N (Here, N is an integer value), method returns the N.

  如果我們傳遞的值等于10 * N (此處N是整數值)，則方法返回N。

• If we pass a positive infinity, method returns the same (i.e. positive infinity).

  如果我們傳遞一個正無窮大，則方法將返回相同的值(即正無窮大)。

• If we pass 0 (negative or positive), method returns the negative infinity.

  如果傳遞0(負數或正數)，則方法將返回負無窮大。

Example:

例：

// Java program to demonstrate the example of // log10(double d) method of StrictMath Class.public class Log10 {public static void main(String[] args) {// variable declarationsdouble d1 = 7.0 / 0.0;double d2 = -0.0;double d3 = 6054.2;// Display previous value of d1,d2,d3System.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 (-infinity)System.out.println("StrictMath.log10(d1): " + StrictMath.log10(d1));// Here , we will get (-Infinity) because we are// passing parameter whose value is (-0.0)System.out.println("StrictMath.log10(d2): " + StrictMath.log10(d2));// Here , we will get (log [10 raised to the power of the given argument])// and we are passing parameter whose value is (6054.2)System.out.println("StrictMath.log10(d3): " + StrictMath.log10(d3));} }

Output

輸出量

d1: Infinity d2: -0.0 d3: 6054.2 StrictMath.log10(d1): Infinity StrictMath.log10(d2): -Infinity StrictMath.log10(d3): 3.782056763740091

翻譯自: https://www.includehelp.com/java/strictmath-log10-method-with-example.aspx

strictmath

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