21 preloaded basic formula programs useful at civil engineering surveying work Axis Transformation : Calculate coordinates when the coordinate axis is moved or rotated. Right Triangle Trigonometry : Calculate horizontal distance and vertical distance (height) to the hypotenuse. Pythagorean : Calculate the hypotenuse of a right triangle using the Pythagorean Theorem. Coordinate Calculation : Calculate the coordinates of a sought point Bearing Angle : Calculate the bearing angle to a sought point. Traverse Calculation : Calculate the coordinates and angle of direction of a sought point using traverse calculation. Inverse Calculation : Calculate the angle of direction, distance, and bearing angle of each point using inverse calculation. Decentering : Calculate the eccentric angle and the distance between measured points in eccentric observation. Middle Ordinate : Calculate the middle ordinate of a simple curve. Single Curve : Calculate the elements of a simple curve. Clothoid Curve : Calculate the elements of a clothoid curve. Vertical Curve : Calculate the length of a vertical curve. Forward Intersection : Calculate the coordinates of a sought point from the coordinates of two points and bearing angle. Backward Intersection : Calculate the coordinates of a sought point from the distance to each of two points and their coordinates. Coordinates of Intersection (3 Points & 1 Angle) : Calculate the coordinates of a point of intersection from the coordinates of three points and one angle of direction. Coordinates of Intersection (4 Points) : Calculate the coordinates of a point of intersection from the coordinates of four points. Calculation of Perpendicular Coordinate and Distance : Calculate the point of intersection with a perpendicular straight line suspended from a point and the perpendicular distance. Area of Triangle : Calculate the area of a triangle from the coordinates of three points. Area of Quadrangle : Calculate the area of a quadrangle from the coordinates of four points. Heron Formula : Calculate the area of a triangle using Heron's Formula. Stadia Calculation : Calculate the horizontal distance to a staff and relative elevation from measured values using stadia surveying. Display Dot Matrix : 128 x 64 dots Backlit LCD Keybaord Number of keys : 38+3 side keys Illuminated keyboard Interface USB port : Mass Storage SD card slot Memory User memory program area : 62,000 bytes Storage memory : 1MB System OS update function CSV import Program conversion Software Matrix Complex Statistics Spreadsheet Unit conversion : 107 Build-in formulas : 21 Surveying only Programs Recall Angle display (>DMS command) Variable Memory : 28 Hardware Dimensions H x W x D (mm) 21.0 x 88.5 x 177.5 Approximate weight (g) 250 g. (including batteries) Water-resistance Dust-resistance Operation temperature : 0? to 40?(AAA-size alkaline batteries?-5? to 45?(nickel-metal hydride batteries) Batteries: Four AAA Alkaline/ support Ni-MH rechargeable Approximate battery life (hours) -200 (AAA-size alkaline batteries)
