R-Language logarithm function (known base and power, exponential)

The R language is very powerful and can be used to calculate various types of exponential functions.

For example, suppose Y=a^x, seeking x.

Function:

Log (P1 [, p2])

Where P1 is the power, P2 is the base, if P2 does not exist, then the base is E, the result is exponential.

Note: Here the e is a mathematical constant, is the base of the natural logarithm, approximately equal to 2.718281828, also known as Euler number.

1. Natural logarithm (base e logarithm)

• Example (1)
  

Input: x<-exp (1)

Log (x)

Or

• Example (2)
  

Input: Log (exp (1))

Output: 1

• Example (3)

Input: Log (10)

Output: 2.302585

Description: Calculates an e-base

2. Logarithm with 10 base

Input: Log (100^2,100)

Output: 2

The first argument is a power, and the 2nd argument is the base.

3. Logarithm with 2 base

Input: Log (2^10, 2)

Output: 10

4. Logarithm with 3 base

Input: Log (3^10, 3)

Output: 10

5. Logarithm with any real number as the base

Input: Log ((2.5) ^8,2.5)

Output: 8

R-Language logarithm function (known base and power, exponential)