Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Errors

As I keep working through this book, I keep coming across little errors that make it frustrating to use. I know I make typos forget to carry over an exponent, etc. I can always work back through and find where I went wrong. Mostly the errors in the book seem to be with exponents xy^2 becoming x^2y. I can accept books have errors, and math books in particular, but cannot accept there is no corrections information available to let me know when I've truly done something wrong, or the book has. Hence, the low score. It really isn't worth the frustration of finding out you were correct and the book was wrong.