App Features: -Extensive table of contents with drop down menu topic navigation - graphics updated for every user change - no blank screens - default and example values with auto fill - unrestricted inputs for any textbook values - a unique portable standalone education tool or can be combined with any standard text book - optional display calculations - explanatory text for every topic - mobile technology encourages students to spend more time studying than with a traditional textbook. Learning by doing approach to study, encouraging both experimentation and exploration of the subject.