You can use Math. log(value) to get log of specific value where value is considered to be in double . You can also use Math. log10(value) to get base 10 log.

## How do you write a log in Java?

**log()** method returns the natural logarithm (base e) of a double value as a parameter. There are various cases : If the argument is NaN or less than zero, then the result is NaN. If the argument is positive infinity, then the result is positive infinity.

## What is the log function in Java?

log() method. The java. lang. … log() is **used to find out the Logarithmic Value of any number**. This method returns the natural logarithm (base e) of a double value as a parameter.

## How do you calculate logs?

The relationship between ln x and log x is: **ln x = 2.303 log x** Why 2.303? Let’s use x = 10 and find out for ourselves. Rearranging, we have (ln 10)/(log 10) = number.

…

CALCULATIONS INVOLVING LOGARITHMS.

Common Logarithm | Natural Logarithm |
---|---|

log x/y = log x – log y | ln x/y = ln x – ln y |

log x^{y} = y log x |
ln x^{y} = y ln x |

## How do you do log base 2 in Java?

**Approach:**

- Math class in Java (java. lang. Math) is a library which holds the functions to calculate such values, like sin(), cos(), log() etc. …
- But as we know that log
_{a}b = log_{10}b / log_{10}a. - Therefore we can calculate log
_{2}N indirectly as: log_{2}N = log_{10}N / log_{10}2. Below is the implementation of the above approach:

## Do log in Java?

**The java.** **lang.** **Math.** **log(double a) returns the natural logarithm (base e) of a double value.**

- If the argument is NaN or less than zero, then the result is NaN.
- If the argument is positive infinity, then the result is positive infinity.

## What is E in Java?

Here **the type parameter of Node class** . The type parameter defines that it can refer to any type (like String, Integer, Employee etc.). Java generics have type parameter naming conventions like following: T – Type.

## What is a long value in Java?

long: The long data type is a **64-bit two’s complement integer**. The signed long has a minimum value of -2^{63} and a maximum value of 2^{63}-1. In Java SE 8 and later, you can use the long data type to represent an unsigned 64-bit long, which has a minimum value of 0 and a maximum value of 2^{64}-1.

## How do you get E in Java?

exp() method is used to find the Euler’s number **e** raised to the power of a double value in **Java** for the given input ( x – parameter). The computed result must be within 1 ulp of the exact result. Results must be semi-monotonic. The value of constant **e** = 2.71828 approximately.

## What is Println in Java?

println() is **used to print an argument that is passed to it**. The statement can be broken into 3 parts which can be understood separately as: System: It is a final class defined in the java. … out: This is an instance of PrintStream type, which is a public and static member field of the System class.

## What is a log equation?

A logarithmic equation is **an equation that involves the logarithm of an expression containing a variable**. To solve exponential equations, first see whether you can write both sides of the equation as powers of the same number.