HP 12c Platinum Error 0 in Percent Difference

[Kaijikunito]

Gene,

From my understanding RPN is more efficient in terms of keystrokes, which is why I am interested in learning the sytem. I appreciate that algebraic mode is available because if I am not sure that I am entering a calculation in RPN correctly, I can double-check myself in ALG mode.

Thank you so much for posting that solutions manual! I will soon be posting it to every tree in my neighborhood to spread the word