The Ultimate Builder's Construction Calculator for your Desktop, Notebook, and PocketPC. Here are just a few of the features that make Construction Advantage the best. Keypads and Entry Logic Patented 0-15 keyboard exclusive only on the Jobber User selectable choice of Algebraic or RPN entry modes User selectable scientific or standard keypad Mini-keypad for easy entry when working with Solvers Units and Conversions Works with and displays Feet-Inches-Sixteenths (e.g., 24' 7-3/16") Converts among over 70 different units (ft, m, lb, yd3, etc.) Computes directly with dimensional values (e.g., 70 lb/ft3 x 5 yd3 = 9450 lb) Automatic Solvers Circle Circle - Segmented Fall Circle - Segmented Rise Cone Cube Cylinder Rafters Rectangular Box Sphere Stairs Triangle - Oblique Triangle - Right Triangle - Segmented Fall Triangle - Segmented Rise Additional Features Estimator for easily computing weight and/or cost based on unit weight and/or unit cost, respecitively, along with area, length/thickness, or volume "Paperless tape" that keeps your last 20 entries. You can also recall tape values to the main display Memory with 10 locations - all support store, recall, add (M+), and subtract (M-) Easy input and editing, including backspace and ability to click the main display value to re-enter edit mode Ability to print and/or save Solver results (Windows only)