Mismatched Interval Notation in Math Input (Auto-complete Parentheses/Brackets)

Questions
1

Hello,

I’m running into an issue with math response fields when students try to enter mismatched interval notation (like (-8, 2]).

It looks like an update over the summer changed how auto-complete behaves in the math input component. Now, when a student opens with a parenthesis ( or bracket [, the field automatically inserts the matching pair. When trying to type a mixed interval like (-8, 2], it forces matching enclosures, resulting in nested or garbled inputs like [(-8, 2)].

Please see the example activity I created here:

Because of this, students are unable to type mismatched intervals cleanly, which breaks standard LaTeX string checks in Computation Layer (CL).

A couple of questions for the community:

  1. Is there any setting or toggle in CL / screen settings to disable automatic closing of parentheses and brackets in a math input?

  2. If auto-complete can’t be toggled off, how are you currently handling answer checks or input for half-open intervals like (-8, 2]?

Thanks in advance for any advice or workarounds!

2

Surprised no one from Amplify responded to this!

For anyone else running into this issue and looking for a workaround: I came up with a solution where students can copy and paste the mismatched brackets and parentheses directly.

Feel free to check out Slide 2 of the attached activity to see how it works in action:

3

Sorry about that! I’m pretty sure I’ve seen a workaround elsewhere in the forum before (possibly using multiple choice components or something a bit hacky). I think until the Desmos calculator supports mismatched brackets, this is unlikely to change. You can put in a feature request for disabling autocompletion through a support ticket. I’ll pass it along other channels as well.