Innovative and engaging problems. Under the approach called the ?Rule of Four,? ideas are presented graphically, numerically, symbolically, and verbally, thereby encouraging students with a variety of learning styles to expand their knowledge. A Flexible Approach to Technology: Adaptable to courses having various levels of computer involvement, ranging from little or none to intensive. The book does not require any specific software or technology, though it has been used successfully with graphing calculators, graphing software, and computer algebra systems. Applied Problems for instructors wishing to emphasize the connection between calculus and other fields