ChangeUnits

Engineers and scientists often find themselves repeatedly solving the same equation.  Each time some of the parameters might change, but the underlying solution remains the same.  Using ChangeUnits you make your solutions independent of units -- enter your parameter values using whatever units you have and get the results in the units you want.

Using this approach we put together a set of sample Excel files based on example problems from popular undergraduate engineering textbooks.  These include both examples of how to use ChangeUnits and pre-programmed formulas for many fields that can be downloaded and used by students, researchers, and other professionals.

Mechanical Engineering

Juvinall, R. C., and Marshek, K. M., Fundamentals of Machine Component Design, Fourth Edition, John Wiley & Sons, 2006. 

• Solutions to Example Problems from the Textbook

Sonntag, R. E., Borgnakke, C.,  and Van Wylen, G. J., Fundamentals of Thermodynamics, Sixth Edition, John Wiley & Sons, 2003. 

• Solutions to Example Problems from the Textbook

Wickert, J. A., An Introduction to Mechanical Engineering, First Edition, Brooks/Cole – Thomson Learning, 2004. 

• Solutions to Example Problems from the Textbook

Hydrology

S. L. Dingman, Physical Hydrology, Second Edition, Prentice Hall, 2002. 

• Solutions to Example Problems from Chapter 7: Evapotranspiration