use nested for-loops to generate a matrix (without typing the numbers explicitly)

Question

Sajid Sarwar 2019-11-16

编辑： KALYAN ACHARJYA 2019-11-16

I want to use nested for-loops to generate a matrix that has elements shown below (without typing the numbers explicitly)

I need help in developing logic.

12 8 4 0 -4

14 10 6 2 -2

16 12 8 4 0

A=[ ];

for i=1:3

for j=1:5

A(i,j)=? % need help in developing logic.

end

Answer 1

KALYAN ACHARJYA 2019-11-16

编辑：KALYAN ACHARJYA 2019-11-16

I want to use nested for-loops to generate a matrix

Multiple ways you can do that, as you asked for:

init_val=12;
for i=1:3
    for j=1:5
        A(i,j)=init_val;
        init_val=init_val-4;
    end
    init_val=A(i,1)+2;
end
A

OR

array_data=12:-4:-4; % Given
A=[array_data;array_data+2;array_data+4]