Ideal for engineers, architects, designers, fabricators, estimators and students. Especially for Aluminum fabrication industries where they have to dealt with dimensions all the time. The whole package consists of: 4 length calculators to target different input styles, and results can be e-mailed : a. Imperial inputs calculator.(with 6 accuracy levels & 6 output formats) b. Metric inputs calculator.(with 6 accuracy levels & 6 output formats) c. Digital inputs calculator.(with 6 accuracy levels & 6 output formats) d. Inches inputs calculator.(with 6 accuracy levels & 6 output formats) They all come with videos showing the slick operations. A group of Area calculators, and a group of Volume calculators. A group of Units conversion calculator and a Fraction calculator. A group of Basic Calculator and Scientific Calculator. A group of lineal cutting optimizers(digital and imperial). Area calculator covers: Annulus, Circle, Ellipse, Hexagon, Octagon, Parallelogram, Pentagon, Regular Polygons, Rhombus, Segment of a circle, Sector of a circle, Square, Rectangle, Trapezium, Triangles. Volume calculator covers: Barrel, Cone, Cuboid, Cylinder, Frustum, Pyramid, Hollow cylinder, Parallelepiped, Sector of a sphere, Segment of a sphere, Sliced cylinder, Sphere with cylindrical bored, Sphere with Conical Bored, Sphere, Torus, Ungula, Zone of a sphere. Units conversion calculator covers: Length, Area, Volume, Mass, Pressure, Linear Velocity, Angular Velocity, Acceration, Energy, Power, Density, Thermal conductivity, Thermal conductance, Heat flow, Temperature, Data storage, Angles, Fuel consumption(US), Fuel consumption(UK), Time, Flow rate, Force, Torque, Cook Measurement.. A Fraction Calculator comes with continuous calculating method. It is designed with the easiest and most convenient way. It can handle large numbers, and results will be reduced to the simple form. A Basic digital calculator. A Scientific digital calculator: 1. It is sound supported with taped operations. 2. The results can be emailed. 3. It covers almost all scientific functions. Lineal Cutting Optimizer It is simple and easy to use with a short learning curve. It works best for aluminum and steel fabrication companies who require material optimizations as part of their daily operations. ie. cutting aluminum extrusions, curtain wall, window and framings. A digital video demonstrates how the calculator works. An imperial video demonstrates how to feed data for the imperial system (feet-inches and fractions) in the easiest way. It is a unique design in the mobile app so far plus there are error codes to identify your input data is correct. It can save materials loss through a lot of iterations with best combinations. Ideal tool for engineers, estimators and material handling persons. Highlighted features: 1. incorporates with saw blade width(kerf). 2. can handle more input lengths with upgraded models. 3. cutting pattern and waste reports(including the left over of each stock length) 4. results can be emailed.