## What is LOG function in Excel?

The **LOG **function is one of the math functions of Excel.

It Returns the logarithm of a number to the base you specify.

We can find this function in **Math & trig category** of insert function Tab.

## How to use **LOG **function in excel

- Click on
**an empty**cell (like F5 )

2. Click on the **fx icon** (or press shift+F3)

3. In the** insert function tab** you will see all functions

4. Select **math and trig** category

5. Select **LOG **function

6. Then select **ok**

7. In the function arguments Tab you will see **LOG **function

8. Number is **the positive real number** for which you want the **logarithm**

9. Base is the **base of the logarithm**; 10 if omitted

10. You will see **results **in the formula result section

## Examples of **LOG** function in excel

**Example 1:**

**How to use LOG function in excel**

You can see examples of LOG function below:

**log**(A2,B2) ----->>>>answer is 3
**log**(A3,B3) ----->>>>answer is 1
**log**(A4,B4) ----->>>>answer is 2
**log**(A5,B5) ----->>>>answer is 2
**log**(A6,B6) ----->>>>answer is 3

## What is the purpose of **LOG** function?

**LOG**

It Returns the logarithm of a number to the base you specify.

## What is the Return value of **LOG** function?

**LOG**

It returns a number.

## How many arguments does **LOG** function have?

**LOG**

This function has just **2** Argument.

The **argument **of LOG function is **number**.

Number is **the positive real number** for which you want the **logarithm**.

Base is the **base of the logarithm**; 10 if omitted.

The argument of LOG function is **required **and not optional.

```
LOG(number) = number
```

## Which version of excel supports **LOG** function?

**LOG**

This function is available for all excel **versions **(2003-2019)

## Errors in **LOG** function

**LOG**