# Derivatives with Matrices

Using simple matrix multiplication, we are able to find the derivative of, at least, polynomials. Our aim is to find the derivative of

```
% The derivative matrix, D, for polynomials of degree 3.
D = [0 1 0 0; 0 0 2 0; 0 0 0 3]
```

D = 0 1 0 0 0 0 2 0 0 0 0 3

% The polynomial, p, p = [ 2; 4; 7; 1]; % The derivative of p (d/dx) is multiplication of matrices D and p q = D*p % The result is

q = 4 14 3