PPL is well documented in the Prime user's manual and many web pages. Using information from the manual and some examples online, to learn PPL I wrote the small Spirograph-like program above that can ...

but HP is still in there with the HP Prime. It is hard to call it a calculator since the latest variant has a 528 MHz ARM Cortex A7, 256 MB of RAM, and 512 MB of ROM. But if you can’t justify a ...