Build my own AND function

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Thom
Thom 2017-4-20
回答： Roger Stafford 2017-4-20
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

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回答（1 个）

Roger Stafford
Roger Stafford 2017-4-20
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);

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