MATLAB: How to perform xor operation on an three input binary bits.

xor

How to perform xor operation on an three input binary bits.

for two inputs we use xor(1,0),

for three input bits xor(1,1,0), gives error.

How to perform the calculation?

Best Answer

a = xor(1,1); %1 xor 1 = 1
b = xor(a,0)  %1 xor 0 = 0
%or
c = xor(xor(1,1),0)

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MATLAB: What does this line of code mean in non-code speak

div4, div100, and div400 are all logical variables, 1 or 0.

 if (div4 & ~(xor(div100,div400)))

says "if div4 is true (1) and div100 and div400 are both false or both are true, do something"

~xor(div100,div400)

equals 1 (true) only if both div100 and div400 are false or both are true

MATLAB: & operator without if

The & operator is an elementwise operator. Just like the + operator will add corresponding elements of its inputs when given two vectors of the same size:

x = [1 2 3];
y = [4 5 6];
z = x + y % z(1) = x(1) + y(1), z(2) = x(2) + y(2), z(3) = x(3) + y(3)

The & operator will take the and of the corresponding elements of its inputs.

a = [true false true];
b = [true true false];
c = a & b; % c(1) = a(1) & b(1), c(2) = a(2) & b(2), c(3) = a(3) & b(3)

The & operator with two scalars as input returns true if both its inputs are non-zero and false otherwise.

[ true &  true; ... % true
  true & false; ... % false
 false &  true; ... % false
 false & false]     % false

Best Answer

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MATLAB: What does this line of code mean in non-code speak

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