In case you were in any doubt, the scientific literature is not error free. Text books are still frequently written which contain misconceptions (as distinct from poor explanations).
This site offers a pretty strident criticism of many such publications, together with a clearer interpretation of much of the underlying thinking.
Patrick Andrews has a PhD in Mechanical Engineering from Heriot-Watt University and an MSc in Neuroscience from the University of Cambridge.
A former Chartered Engineer and Chartered Mathematician, Patrick has worked in management consultancies and high-tech startups, and in academia as a postdoc in Applied Mathematics at Cambridge and a maths lecturer at De Montfort University.
Patrick is the father of three delightful (but not uniformly mathematical!) daughters.