How to Sum a product between 0 to N-1 points.

How to achieve Multiply and Addition of N discrete points from (0 to N-1) using Matlab. For Example FFT,FIR,IIR Filters,MAC unit

Answer 1

[Walter Roberson]

sum(A .* (0:N-1))

[Shravankumar P]

Sir, Thank you for your response, can you please look at this and provide me an example code for that.