First and foremost, I did not understand the question.

I thought I will make out by understanding the solution. But I did not understand the solution as well. Can you explain, how does the below code works, please?

```
def func(x):
return x**2
def find_derivative(data):
func, x_a = data
delta_x = 0.000001
f_x_a = func(x_a)
f_delta_x = func(x_a + delta_x)
return ((f_delta_x - f_x_a)/delta_x, x_a, f_x_a, delta_x)
data = (func, 6)
find_derivative(data)
```