How to fined specific Kth values of an vector with n element

Supose i have a vector a = [ 2 4 6 8 10] and i want to extract the 1st , 3rd and 5th elements so i want to use a vector b = [1 3 5] and get the answer back as : c = [2 6 10]; how do i do that?

Thanks!

Answer 1

[Image Analyst]

Use b as a linear index for a:

a = [ 2 4 6 8 10] 
b = [1 3 5] 
c = a(b)