Published on 10/29/2015 8:08 PM by JGD

Equation library for the HP Prime

If there is a problem with the HP Prime, it is the lack of software available for it for the different professional fields: finance, engineering, physics, etc. The calculator, while extremely powerful, and programmable in a much more user-friendly language than the elegant but complicated RPL, was intended for secondary education, with extension to university maths, due to its extensive CAS system. However, if you wanted to load a formula for any physics or engineering problem, you were out of luck - they had not been programmed before.

I have tried to put together some account sets in the solver app - but I am limited to 10 for each app I set for it; and the selection of functions, and its use, could be clearly improved.

I am now excited, since I have seen exactly what I was looking for. Eddie B. Shore has created an equation library with 47 different equations that can be loaded in the solver app, covering many categories:

• Geometry (areas, volumes, surface areas),
• Finance (monthly loans, sales tax, break-even),
• Temperature Conversion (Fahrenheit to and from Celsius),
• Physics: Problems of Motion (linear distance, circular motion, pendulums, terminal & escape velocity),
• Sound (speed of sound, Doppler effect, loudness),
• Optics (Lens and Snell equations, spherical refraction),
• Electronics (2 resistors series and parallel, thermal noise, Ohm’s Law),
• Astronomy (parallax, luminosity, Kepler’s 3rd Law, time dilation),
• Great Circle Calculations,
• Angle of Incidence Calculations,
• Gases (Ideal and Boyle’s Gas Laws, heat capacity, air density, isothermal expansion), and
• Fluids (depth pressure, fluid flow, Bernoulli’s Equation).

I am now traveling, but I really look forward to get into my computer and load it in my Prime!

You can find the file with the program here:

http://www.hpcalc.org/details.php?id=7654