Calculated Industries 4090 Sheet Metal/HVAC Pro Calc Calculator | Advanced Construction-Math for Sheet Metal & HVAC Pros, Fan Law Functions, ArcK Built-in Constant, Laws of Cosines

Description CUSTOM HVAC & SHEET METAL functions let you simplify Test and Balance (TAB) with built-in Fan Law function: CFM, RPM, SP and BHP; plus velocity and velocity pressure: FPM, VP, MPS, KPa; ArcK constant for convenient Arc length solutions; and offset functions FUNCTIONS AND TERMINOLOGY consistent with sheet metal and HVAC trade terminology; x, y, r (radius), theta and Seg Radius functions; works in and converts between feet-inch-fractions, decimal feet and inches and metric also converts between polar and rectangular coordinates PARENTHESIS OPERATORS allows you to easily enter complex formulas; order of operations calculations retain familiar mathematical hierarchy as a default preference; trigonometric operation and sequence; plus you can calculate square, square root, cube, and cube root; easy non-90 triangles and right-angle solutions for ductwork length and angles MEMORY STORAGE conveniently stores frequently used constants or interim solutions; Memory swap lets you easily insert stored values into current calculations and simultaneously store calculated values while recalling and displaying Memory contents; other settable User Preferences