Show HN: MathGPT – Create math animations for any question

math-gpt.org

76 points by yannigk 2 days ago

Hi, we're MathGPT! MathGPT creates Khan-Academy-style animated math videos that intuitively explain complex concepts to students, helping them understand how to solve their problems step-by-step. We're currently serving over 2M users, processing 800M tokens / day and growing! If you try it out, we would appreciate feedback on how we can make the overall experience / video generation better! Email me at ygk2[at]cornell.edu.

zaptrem 2 days ago

We used it to make memes (single sentence prompts) and the results are hilarious

How Jeb! Won the election: https://math-gpt.org/?video_id=b9e16dbd-cab6-44e3-a393-f255b...

Mathematical proof AI is doomed: https://math-gpt.org/?video_id=c5745f99-b1d1-4c57-8a93-6fe3b...

  • jamilton 2 days ago

    Surprisingly funny! AI is often unfunny when it tries to be funny, I wonder why this is better.

    • zaptrem 2 days ago

      We wondered the same thing! I wonder which model they’re using.

  • pixelsort a day ago

    Ha! Okay, I laughed at "computational phrenology".

  • yannigk a day ago

    Haha these are amazing! I love them!

  • malshe a day ago

    Hilarious! This can potentially go viral

lagrange77 a day ago

That's a really interesting application of LLMs and manim.

My problem with it, as with LLMs in general, is that i can't fully trust it. This isn't a problem with topics you know well. But those 3b1b style tutorials are meant to build an understanding or mental model of a concept for people who don't know it well yet. I'm afraid that, if the output is (partially) wrong, watching such a video could be even harmful in understanding the concept, because your 'greenfield' brain may pick up pieces of it that made sense to it.

mlukaszek 11 hours ago

It's pretty good! It did quite well when asked a variant of "when do the trains meet" problem, although it used different values for speed than what I told it to use (and what it actually used in textual response: 120km/h and 20km/h in video vs 80km/h and 60km/h in the prompt and textual response).

https://math-gpt.org/?video_id=a7489ec5-b06e-480a-96c4-27765...

If it did the animations in 3Blue1Brown style, that would be cherry on the top! ;-)

Edit: I did notice it uses Manim, it just doesn't have the same feeling

  • xenonite 11 hours ago

    Sadly the resulting calculation is wrong (190/140≠1.5)

    • mlukaszek 29 minutes ago

      Haha I did not even register that as I expected 1.5 as the answer...

jrussino 2 days ago

FYI for the input "Graph a cartoid and explain it" I get a correct definition and some interesting facts/properties (in spite of the fact that I mis-remembered the name of the object I had in mind; it should have been "cardioid"). But then it tries to provide a plot, and the plot has an error:

``` Error Please check your input: Undefined variable heta ```

Looks like there's a "theta" that's being incorrectly truncated, or something to that effect.

I refreshed a few times and found that I consistently saw this same error.

  • yannigk a day ago

    I was able to replicate your error and pushed a fix, it should be working pretty reliably now for equations that include theta. Let me know if it works for you!

sprobertson 3 hours ago

Very cool, how does it work? (even if just at a high level)

Alifatisk 15 hours ago

I am so happy tools like these gets created and is available for free.

When growing up, I had difficulty learning math and I wasn't able to ask my parents for help so much. That is when I found PhotoMath, it changed my life, it became my second teacher and it was for free! I don't think Google even owned it at the time.

I remember being very scared of losing it one day. Luckily that never happened, but I will never forget how much these math tools helped me growing up.

8n4vidtmkvmk a day ago

Neat, but I think I'd like it better if you simplified it and dropped the focus on teaching students. What I'd prefer is a slightly smarter WolframAlpha that doesn't force me to learn their weird syntax. Let me ask my math question in English, you turn that into a formula and just give me the solution. I don't need the explanation.

The video generation is overly ambitious. Some of them come out wonky and wrong.

bassrattle 2 days ago

As a test, I input a2b2. It interpretted that as a^2xb^2 which is fine but it kept pronouncing "A squared" as "a square" (more phonetically, "uh square")

For a tool meant to enlighten, hearing "a square be square" was confusing.

pino999 a day ago

I don't know, it is still chatgpt. I wouldn't let it near homework soon. I do enjoy the latex rendering.

Anyway it can't even solve x mod 66 = 3 (answer: x = 3 + 66k, where k = 0, 1, ...)

Somehow it thinks the answer is 32 and it comes with a huge blob of shit.

fph a day ago

Very neat! Can created content be reused freely by teachers? Do you require attribution? I am interested in tikz plots more than in videos, personally.

freakynit 2 days ago

Holy cow this is insanely wonderful. Extremely beautiful explanation of concepts. The generated videos are like professionally hard-crafted. Great work!

  • j_bum a day ago

    Any examples? I’ve tried several prompts and get errors each time the plotting begins

    • freakynit 18 hours ago

      I tried following:

      1. Eigenvalues and eigenvectors

      2. Principal component analysis

      3. Low rank matrices

vivzkestrel a day ago

it says .org in the domain. Is this a "for-profit" privately operated company or some experiment with GPT? did you guys build your own proprietary model or is it using some open source LLM model?

IndieCoder 2 days ago

Kudos for the UI, very nice to see the seamless integration of formulas, graphs and videos!