||For engineering and science professionals and students who own the popular HP 35s Scientific Calculator, the 35s Software Version is now available for your PC. Built with the same layout, algorithms and calculation sequences you trust for engineering and advanced math. When you find yourself without your calculator, relax just open it as a window on your PC. Easily copy and paste a screen image from the 35s to your document. Even use it as a teaching tool, by projecting the emulator from your PC in the classroom.