MATLAB: How to efficiently encode two values as a unique entitiy

efficientif statementMATLAB

Dear all,
With respect to the above subject, I wonder if we can make the following code more efficient and compact (reduce the ifelse)..
A=3;
B=3;
C=[];
if A==1 && B==1
    C=1;
elseif  A==1 && B==2
    C=2;
    elseif  A==1 && B==3
    C=3;
    elseif  A==2 && B==1
    C=4;
    elseif  A==2 && B==2
    C=5;
    elseif  A==2 && B==3
    C=6;
    elseif  A==3 && B==1
    C=7;
    elseif  A==3 && B==2
    C=8;
    elseif  A==3 && B==3
    C=9;
end
In addition, I also wonder if we can scale it up for A=[2;2;3;1] and B= [1;1;3;1]
Thanks in advance

Best Answer

M =  [1,2,3;NaN,4,5;6,7,8];
C = M(A,B)
"In addition, I also wonder if we can scale it up for A=[2;2;3;1] and B= [1;1;3;1]"
arrayfun(@(a,b)M(a,b),A,B)
Related Question