The clearest article I&#x27;ve seen on the subject is this one:<p><a href="https:&#x2F;&#x2F;colah.github.io&#x2F;posts&#x2F;2015-08-Backprop&#x2F;" rel="nofollow">https:&#x2F;&#x2F;colah.github.io&#x2F;posts&#x2F;2015-08-Backprop&#x2F;</a>