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QuadtoSOC computes a cholesky factorization, which fails when the Q matrix is positive semidefinite but not positive definite:
https://github.com/jump-dev/MathOptInterface.jl/blob/8c8636f47cbcd0bda…
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The function for efficiently computing the phase of a complex number (on the 0-branch) is currently called `angle`. This name sounds really weird. `phase` might be a little more obvious. Note that …
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It'll be necessary to implement a function to extract neighbours from a `TRI` object, or maybe even include them as part of it?
Also some work to do in `TRI`-land:
```
> rbenchmark::benchmark (
…
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Would it be possible to support flagser_memory to be able to use it from Giotto-TDA?
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Hi,
I am learning about visualizing multi dimensional data, So i found UMAP and t-SNE but by any chance can we also get the feature importance of the output.
By feature importance i mean that wh…
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Hi! I am a college student, Jingjing, from China. I study topology theory which is used in the audio signal processing. I read your article about the music stylistic analysis. I like your idea and met…
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Hi Ferdinand,
This is some longer list of typos/comments on your K-theory notes. (For now it's only chapter I; I might also go through the later chapters in this much detail in the semester break.…
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Okay I'll lead off by summarising some of things that have been said on Twitter, our email thread, and bobbing around in my own brain:
# Get the basics right
From the conversation we've had so far…
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I am a researcher in mathematics. As someone who has also worked on semantic mathematics markup (in the form of my package [SemanTeX](https://ctan.org/pkg/semantex)), sTeX caught my attention. Congrat…
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It would be nice if UMAP.jl didn't require the input to be formatted as `X (a column-major matrix of shape (n_features, n_samples))`. For example, I have samples that I store as structs with some meta…