 A comprehensive compressible-flow engineering toolkit for the HP Prime, designed for thermodynamics, gas dynamics, aerospace, mechanical and related engineering applications. The application combines classical compressible-flow relations with a general one-dimensional flow solver in a unified graphical interface. It includes isentropic-flow calculations, area–Mach relations and nozzle analysis, Fanno and Rayleigh flow, normal and oblique shocks, Prandtl–Meyer expansion waves, and a general 1D flow model capable of combining variable area, wall friction, heat transfer, mass addition or removal, variable specific heat (c_p(T)), internal shocks and tabulated profiles. |
A comprehensive HVAC engineering application for the HP Prime calculator designed for psychrometric analysis, thermal-load estimation, air-conditioning processes, duct sizing, duct-network analysis, fan evaluation and system optimization. The application supports both SI and I-P units and provides an automatically localized English/Spanish interface, following the calculator language setting.
A comprehensive mechanical engineering application designed to analyze two-dimensional and three-dimensional stress states directly on the calculator. Its scope ranges from relatively simple engineering tasks, such as calculating principal stresses, maximum shear stress and principal directions, to more advanced analyses involving static failure criteria, fatigue, stress concentration, fracture mechanics and stress invariants. It accepts complete 2D and 3D stress tensors and calculates principal stresses and directions, Von Mises equivalent stress, maximum shear stress and the corresponding Mohr representations. It includes graphical visualization of Mohr circles and several failure envelopes, allowing the numerical results to be interpreted visually without requiring external engineering software.
Calculates electrical resistance using the standard resistor color code. It supports 3- to 6-band resistors through an intuitive graphical user interface (GUI) that allows for seamless navigation using both the touchscreen and physical buttons. Additionally, the app features full multilingual support, automatically adapting to any language available on the calculator.