## What is COT function in Excel?

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

It returns the **cotangent **of an angle.

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

## How to use **COT **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 **COT **function

6. Then select **ok**

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

8. Number section is the** angle in radians** for which you want the **cotangent**

9. You will see the **result **in the formula result section (for example ** COT** pi()/3=0.57)

## Examples of **COT** function in excel

**Example 1:**

**How to use COT function in excel**

You can see examples of COT function below:

**cot**(A2) ----->>>>answer is 0
**cot**(A3) ----->>>>answer is 0.57
**cot**(A4) ----->>>>answer is 1
**cot**(A5) ----->>>>answer is -1.37
**cot**(A6) ----->>>>answer is 1.73

### Python code for **COT** function

**COT**`1/np.cot(x) `

### How to plot Y=**COT**(X) with python code in excel

**COT**

```
import numpy as np
from matplotlib import pyplot as plt
def f(x):
return np.cot(x)
x = np.linspace(-2*np.pi, 2* np.pi, 1000)
plt.plot(x,1/ f(x))
plt.ylim(-5,5)
plt.show()
```

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

**COT**

It returns the **cotangent **of an angle.

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

**COT**

It returns a number.

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

**COT**

This function has just **1** Argument.

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

Number section is the** angle in radians** for which you want the **cotangent**

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

```
COT(number) = number
```

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

**COT**

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

## Errors in **COT** function

**COT**

**COT** related functions :

**related functions :**

**COT**