In Ch 1 (introduction) and Ch 11 (pid) we use the term “proportional band” to refer to the range of inputs over which a proportional controller is linear. In Ch 2 (principles) we use the term “linearity range” to describe the same concept. In the first edition of the book we used the term “proportional band” in Ch 1, but it did not appear elsewhere.
Do we want to consolidate these terms? Which should we use?