Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Clear presentation

This is a clear introduction to the concepts and techniques of vector analysis. The emphasis is on practical mathematics. For those interested mainly in applications to physics or engineering, this book provides about as clear and concise a presentation as is possible. It will give the reader many of the mathematical tools needed to understand and solve problems in classical mechanics, electromagnetism, fluid dynamics, and other areas.