> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anlytic.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Log

Returns the logarithm of a number to a specified base

**Category:** `math`

**Syntax:**

```
Log([number_column], [base])
```

**Returns:** `Float`

**Context Filtering:** ✓ Yes

## Parameters

| Name     | Type               | Required | Description                            |
| -------- | ------------------ | -------- | -------------------------------------- |
| `number` | `number or column` | ✓ Yes    | The number to compute the logarithm of |
| `base`   | `number or column` | ✓ Yes    | The base of the logarithm              |

**Allowed Column Types for `number`:** INT, FLOAT, DECIMAL

**Allowed Column Types for `base`:** INT, FLOAT, DECIMAL

## Validation

* Minimum parameters: 2
* Maximum parameters: 2

## Examples

```
Log(100, 10)
```

Logarithm of 100 to base 10
**Result:** `2`

```
Log([Value], 2)
```

Logarithm of each value to base 2