Do Homework Faster! Now you can do your homework better and faster with your own personal online tutor! Calculus Machina shows you how to solve calculus problems step by step. Review key calculus concepts, practice your problem-solving skills, or enter your own problem for Calculus Machina to solve. Solve calculus problems through hands-on practice! Drill down to ever increasing levels of detail in the problem you are working. Enhance your understanding of calculus concepts with Calculus Machina's sophisticated graphing feature.Laurence R. Goldman is the author of 'The Anthropology of Cannibalism', published 1999 under ISBN 9780471401438 and ISBN 0471401439.