Question

create a m.file function in Matlab that ask which element of the magic matrix to replace then replaces it.

Answer 1

function x = replace(x) %function that takes magic matrix as argument and return modified matrix

a=input("which element of the magic matrix to replace: ");

b=input("with what to replace the element: ");

x(x==a)=b; %replacing elements of given magic matrix

end

function x = replace(x)              %function that takes magic matrix as argument and return modified matrix
    a=input("which element of the magic matrix to replace: ");
    b=input("with what to replace the element: ");
    x(x==a)=b;                    %replacing elements of given magic matrix 
end