MATLAB: AVOID FOR LOOP for changing size vector

forfor loopvector

I need to solve this problem without a for loop:
B= (1:20)   
A = [];                     
A(1) = 1/(1+B(1));      
for k = 2:length(B)
    A(k,1) = (1-B(k)*sum(A))/(1+B(k));    
end
i.e. I need to know if it is possible to get information from previous calculation to create a vector, but without a for loop. Thanks.

Best Answer

I could understand you want to avoid use of loop. This can be done using vectorization.
Refer the following link which has few examples on how to do vectorization.
https://in.mathworks.com/help/matlab/matlab_prog/vectorization.html
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