Java log10()带示例

原文:https://www.geeksforgeeks.org/java-log10-example/

java.lang.Math.log10() 是 Java Math Library 方法之一，用于返回给定双精度值的基数 10 对数值作为参数。有各种情况:

• 如果参数是正双精度值，Math.log10()方法将返回给定 值的对数。
• 如果参数为 NaN 或小于零，Math.log10()方法将返回 NaN 。
• 如果参数为正无穷大，则 Math.log10()方法将返回结果为正无穷大。

• If the argument is positive or negative zero, Math.log10() method will return the result as Negative Infinity.

  语法:

  java public static double log10(double a)

  参数:

  java a : User input

  返回:

  java This method returns the base 10 logarithm of a.

  示例:展示 java.lang.Math.log10() 方法的工作。

  ```java // Java program to demonstrate working // of java.lang.Math.log10() method import java.lang.Math;

  class Gfg {

  // driver code     public static void main(String args[])     {

  double a = 1000;         double b = 145.256;         double c = -6.04;         double d = 1.0 / 0;         double e = 0;

  // A power of 10 as input         System.out.println(Math.log10(a));

  // positive double value as argument,         // output double value         System.out.println(Math.log10(b));

  // negative integer as argument,         // output NAN         System.out.println(Math.log10(c));

  // positive infinity as argument,         // output Infinity         System.out.println(Math.log10(d));

  // positive zero as argument,         // output -Infinity         System.out.println(Math.log10(e));     } } ```

  Output:

  ```java 3.0 2.1621340805671756 NaN Infinity -Infinity

  ```

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