Write a function called even_indices that takes two positive integers, n and m, as input arguments (the function does not have to check the format of the input) and returns one matrix as an output argument

Problem 3. Write a function called even_indices that takes two positive integers, n and m, as input arguments (the function does not have to check the format of the input) and returns one matrix as an output argument. The elements of the n-by-m output matrix are all zeros except for the ones for which both indices are even: these need to be ones. For example, here is an example run:even_indices(5,6) ans = 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0

[Steven Lord]

Show what you've written to try to solve the problem and describe exactly where you're having trouble and you may receive some guidance.

[Abdirahman Abdullahi]

Hello Steven Lord.. i want to create a code that generates the above matrices, but my problem i can not understand the trick behind the exact code. i tried to do so but i could not manage and this my job..

function z=even_indices(A,B) z= randi([0,1],[A,B]); end .. after run.. this is the result, even_indices(5,6)

ans =

     1     0     0     0     1     1
     1     0     1     0     0     1
     0     1     1     1     1     0
     1     1     0     1     1     1
     1     1     1     1     1     0

Thank alot for your response, Mr Steven Lord

Answer 1

[KSSV]

m = 5 ; n = 5 ;

A = zeros(m,n) ;
% even positions  replace with 1
for i = 1:m
    for j = 1:n
        if ~mod(i,2) && ~mod(j,2)
            A(i,j) = 1 ;
        end
    end
end

[KSSV]

And in simple....

m = 5; n = 5 ;
A = zeros(m,n) ;
A(2:2:m,2:2:n) = 1 ;

[Abdirahman Abdullahi]

thank you alot Mr KSSV. my pleasures to you for ever.. actually iam beginer in the computer programing and i always face some problems .. thank you again again .. God bless you..

Answer 2

[Roger Stafford]

Hint: 2:2:n yields only even-valued integers.

[Abdirahman Abdullahi]

Thank you alot for your hint Mr Roger Stafford..

Answer 3

[Subhasis misra]