> how many people need to start from 2+2 The basic math sections in the book are quite fast. The intent was not so much to teach/drill/annoy the reader with th

> how many people need to start from 2+2 The basic math sections in the book are quite fast. The intent was not so much to teach/drill/annoy the reader with the high school stuff, but to have a self-contained book, instead of saying "complete the square which you should know from high school". > you think a student could pass the Calculus using only your 60 pages of Calculus as a reference? Honestly, yes. But my belief is unimportant here -- I have to test things out with real students and real exams. > 1st grade to 12th grade A student no, but an adult who doesn't remember that stuff yes.