It is true that in the WWDC24 keynote, Jenny Chen demoed a graph that could be changed by dragging a slider of one of the variables [0], but as you can see in demo in the article, graphs are dead – they do not respond to changing variables. Or maybe I am just doing something wrong...

[0]: https://youtu.be/RXeOiIDNNek?t=2900

I just tested your example and is working fine on two different ipads on iPadOS 18.2 Beta 1 and 2.

You are right, graphs are alive since 18.1. I fixed the article. Thank you.

That works in 18.1. Tap the number you want to change in the equation and you get a slider. Change the number and the graph changes.

You are right, graphs are alive in 18.1. I fixed the article. Thank you.

Looks like the graph is rendering a different expression than the one you are modifying. If you tap to select the graph element view there’s a graph config button you can tap to select which expressions are actually active for that view.

Problem was that iPadOS 18.0 did not support alive graphs.