Build my own AND function

Can someone help me with this exercise, I must implement a function wich works like a logical and operator but without using the and function.I have already wrote some code but, i don`t know how to implement if a&b=1 | a&b=0 without using the "and"

   function [ A ] = AND( E_1,E_2 )
%UNTITLED3 Summary of this function goes here
%   Detailed explanation goes here

a=logical(E_1); b=logical(E_2);

if (a~=b)

    A=logical(0)
end

 if(a==b)
A=logical(1)
 end

end end

Answer 1

[Roger Stafford]

Your code doesn't achieve the 'and' function. In the case when both a and b are false, the valid 'and' result should be false, but in your case it is true. You can use the or '|' function:

A = ~(~a|~b);

In matlab you can take advantage of the numerical representation of true and false:

A = logical(a*b);