From Engineering Power Tools Software:
Engineering Power Tools - Plus Edition is a productivity software for professional engineers. Over 140 programs and data tables are integrated into one package. The programs solve a wide variety of common engineering problems quickly and easily. Eliminates wasted time, hunting for the right formula and performing repetitive manual calculations. Categories include Math, HVAC, Mechanical, Electrical, Materials, and Structural. Networkable. Trial limitations: printing and saving data files is allowed only after registration.