MATLAB: 5 point differentation in Matlab

5 point differentationdoit4meno attempt

Can anyone please guide me as to how to perform 5 point differentiation n Matlab, what does 5 point differentiation mean?

Best Answer

Here are a couple links that explain it about as clearly as possible:
Numerical differentiation formulas (Gives an example using a 4-point first derivative)
Note that if f(x) is the function you are differentiating (here the numerical data you have), h is the step size, that is:
h = x(k + 1) - x(k);
I have experimented with the algorithm for the 5-point first derivative. It is easy to implement, accurate, and reasonably precise.