As of my last knowledge update in October 2021, there isn't any widely recognized figure or entity known as "Phillip Geissler." It's possible that he is a private individual, a lesser-known public figure, or someone who has gained prominence after my last update.
As of my last knowledge update in October 2023, "Weitao Yang" does not refer to a widely recognized figure or concept in popular culture, science, or any other well-known field. It is possible that it could refer to an individual who is notable in a specific context, such as academia or industry, or perhaps a term that has gained prominence after that date.
Jacqueline Barton is a prominent American chemist known for her research in the field of biochemistry and bioinorganic chemistry. She is known for her work on the role of metal ions in biological systems and her studies on DNA. One of her significant contributions is the discovery of how certain metal complexes can interact with DNA and influence its structure and function, which has implications for understanding cancer biology and developing new therapeutic strategies.
Pascale Domingo is likely referring to a person, but there isn't widely available information on an individual by that name up to my last knowledge update in October 2023. It's possible that she may be a private individual, a professional in a specific field, or a character from a story or media not mainstream enough to have wide recognition.
Laura Waller could refer to different individuals, depending on the context. One prominent figure by that name is a professor of electrical engineering and computer sciences at the University of California, Berkeley, known for her work in computer vision and machine learning.
Carmen Menoni is not widely recognized in popular culture or historical contexts as of my last knowledge update in October 2023. It’s possible that she could be a figure in academia, a local personality, or an emerging figure in some field.
As of my last knowledge update in October 2021, I don't have specific information about "Gabriella Bosco." It may refer to a person, a character from a book or film, a brand, or something else altogether. If you could provide more context or details, I may be able to help you better. Alternatively, it might be something that emerged or gained prominence after my last update, so checking more recent sources could also be beneficial.
Simplex by Ciro Santilli 40 Updated 2025-07-16
The name does not imply regular by default. For regular ones, you should say "regular polytope".
Non-regular description: take convex hull take D + 1 vertices that are not on a single D-plan.
Cross polytope by Ciro Santilli 40 Updated 2025-07-16
Examples: square, octahedron.
Take and flip one of 0's to . Therefore has vertices.
Each edge E is linked to every other edge, except it's opposite -E.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact