How to write a code for the following?

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Sadiq Akbar
Sadiq Akbar on 5 Mar 2021
Edited: Sadiq Akbar on 5 Mar 2021
I have two vectors u=[u1 u2 u3 u4]=[1 2 3 4]; and b=[b1 b2 b3 b4]=[1 2 3 4];
For M=4 and N=3, I want a to get a row vector xo of size 1 x M+N-1 such that the general equations for the last two elements of that vector xo are:
x2ndlast=exp(-jpi(N-1)Mcos(u1))+exp(-jpi(N-1)Mcos(u2))+......+exp(-jpi(N-1)Mcos(last element of u))
xLast= exp(-jpi(M-1)Ncos(u1))+exp(-jpi(M-1)Ncos(u2))+......+exp(-jpi(M-1)Ncos(last element of u))
Likewise, I want to get another row vector xe of same size 1 x M+N-1 such that the general equations for the last two elements of that vector xe are:
x2ndlast=exp(-jpi(N-1)Mcos(b1))+exp(-jpi(N-1)Mcos(b2))+......+exp(-jpi(N-1)Mcos(last element of b))
xLast= exp(-jpi(M-1)Ncos(b1))+exp(-jpi(M-1)Ncos(b2))+......+exp(-jpi(M-1)Ncos(last element of b))
Then sum all element of xo in xo. Likewise, sum all elements of xe in xe. Then find
abc=0.0;
for m1=1:M+N-1
abc=abc+(abs(xo(1,m1)-xe(1,m1))).^2; %This is error1.
end
abc=abc/M+N-1;

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