Logical NOT

In MATLAB, ~A performs a logical NOT of input array A, and returns an array containing elements set to either logical 1 (TRUE) or logical 0 (FALSE). This is the truth table and the representation of a NOT Gate as it's represented in digital electronics.

A ~A 0 1 1 0
This is a logical NOT gate, as represented in electronic circuits

An element of the output array is set to 1 if A contains a zero value element at that same array location. Otherwise, that element is set to 0.

Example 1:
If matrix A is:
A =

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

Then, the NOT A is produced:

>> ~A

ans =

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

Example 2:
If vector x is:
x = 0 1 2 -3 0

Then, the NOT x is produced:

>> ~x

ans = 1 0 0 0 1

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XOR gate

De Morgan's Laws

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