Lemmings.world

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General

A general-purpose Lemmy server that anyone can use.

Read the Code of Conduct and follow the rules. There's also the new user's guide.

We have a bot that travels the Fediverse and subscribes to the most popular communities, so that close to all Lemmy content gets synced here.

You can also go chat with others on our Matrix.

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Donations

This instance is funded out of my pocket, if you wish to donate (or just see how much it costs), visit the donations page.

Other

Other Lemmy-related things hosted on Lemmings.world:

founded 2 years ago
ADMINS
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Some inspiring quotes in this one:

I say this because I believe that your original thoughts are far more interesting, meaningful, and valuable than whatever a large language model can transform them into.

If it’s not worth writing, it’s not worth reading.

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I'd rather read the prompt (claytonwramsey.com)
submitted 2 weeks ago* (last edited 2 weeks ago) by parody to c/testtcommunity@lemmy.ml
 
 

“When I grade students’ assignments, I sometimes see answers like this:

Utilizing Euler angles for rotation representation could have the following possible downsides:

  • Gimbal lock: In certain positions, orientations can reach a singularity, which prevents them from continuously rotating without a sudden change in the coordinate values.
  • Numeric instability: Using Euler angles could cause numeric computations to be less precise, which can add up and produce inaccuracies if used often.
  • Non-unique coordinates: Another downside of Euler angles is that some rotations do not have a unique representation in Euler angles, particularly at singularities.

The downsides of Euler angles make them difficult to utilize in robotics. It’s important to note that very few implementations employ Euler angles for robotics. Instead, one could use rotation matrices or quaternions to facilitate more efficient rotation representation.

[Not a student’s real answer, but my handmade synthesis of the style and content of many answers]

You only have to read one or two of these answers to know exactly what’s up: the students just copy-pasted the output from a large language model, most likely ChatGPT. They are invariably verbose, interminably waffly, and insipidly fixated on the bullet-points-with-bold style. The prose rarely surpasses the sixth-grade book report, constantly repeating the prompt, presumably to prove that they’re staying on topic.”

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“I'd rather read the prompt 

Clayton Ramsey - 2025-05-03

When I grade students’ assignments, I sometimes see answers like this:

Utilizing Euler angles for rotation representation could have the following possible downsides:

  • Gimbal lock: In certain positions, orientations can reach a singularity, which prevents them from continuously rotating without a sudden change in the coordinate values.
  • Numeric instability: Using Euler angles could cause numeric computations to be less precise, which can add up and produce inaccuracies if used often.
  • Non-unique coordinates: Another downside of Euler angles is that some rotations do not have a unique representation in Euler angles, particularly at singularities.

The downsides of Euler angles make them difficult to utilize in robotics. It’s important to note that very few implementations employ Euler angles for robotics. Instead, one could use rotation matrices or quaternions to facilitate more efficient rotation representation.

[Not a student’s real answer, but my handmade synthesis of the style and content of many answers]

You only have to read one or two of these answers to know exactly what’s up: the students just copy-pasted the output from a large language model, most likely ChatGPT.”

Read more: https://claytonwramsey.com/blog/prompt/

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