# MATLAB: Array Operation with using another array

arraymatrix

I have 2 different arrays as
k=[4 9 3 3 6 8 8 12 6]
m=[1 2 6 7]
i need to reach the summation of
k(1)+k(2)+k(6)+k(7)
how can i do this with for loop?

• sum(k(m))