# matlab tf get poles

To get the poles of a transfer function in MATLAB, you can use the `pole`

function. This function returns the poles of the transfer function as a column vector.

Here is an example of how to use the `pole`

function:

```
% Define the transfer function
num = [1];
den = [1, 2, 1];
sys = tf(num, den);
% Get the poles
p = pole(sys);
```

In this example, we define a transfer function with the numerator coefficients `[1]`

and the denominator coefficients `[1, 2, 1]`

. We then use the `pole`

function to get the poles of the transfer function and store them in the variable `p`

.