HP Prime: a student's view

[Wes Loewer]

(09-03-2021 01:31 AM)Liam Hays Wrote:  

jte Wrote:I’m not sure if you noticed, but you can effect purely vertical / horizontal stretches (in Function and Advanced Graphing) if you carefully position and move your fingers when pinching.

I have noticed this feature, and I haven't had any use for it (yet).

A couple of weeks ago I showed this feature to a few of my AP Calculus students who are new Prime users. I thought they were going to pee themselves with excitement.

Often, calculus problems involve functions defined over some fixed domain, so the ability to interactively zoom just vertically is exceedingly useful.