50 formulae catering to Hydraulic Engineering.Scientific Evaluator-Superlative collection of Operators and instant reference to recent calculations.Memory functions etc.A must have for Hydraulic Engineering professionals and students.A Palm software program empowers you instant references and solutions of frequently encountered calculation at your finger tips.Time Req. to Empty a Sphere(Sharp Edged Orifice),BHP Req. to Pump any Fluid and more..