Recommended for fabricators, engineers, designers and students who like to enjoy the tape measuring feelings. It has a relatively short learning curve and it is fun to use. It is particularly useful for aluminum framing fabrications. A short video is included to demonstrate how swift is the actual operations. Features: 1. continuous calculations method. 2. visualize your input lengths in the proper format. 3. results will be presented with Imperial and Metric formats. 4. with 6 levels of accuracy levels. 5. results can be emailed.