The goal of Mathpix(https://mathpix.com) is to save you time by minimizing the effort needed to type complex LaTeX. It can extract text and mathematical expressions from images or documents and generate the corresponding LaTeX code. You can then paste this LaTeX code into a document editing tool, such as a LaTeX or Markdown editor.
1. One example
1.1 the input image to Mathpix
1.2 LaTeX codes created by Mathpix
2.LaTeX cheatsheet
https://pages.uoregon.edu/torrence/391/labs/LaTeX-cheat-sheet.pdf
3. Learn How to Write Markdown &LaTeX in The Jupyter Notebook
https://towardsdatascience.com/write-markdown-latex-in-the-jupyter-notebook-10985edb91fd
4. LaTeX tools
https://www.overleaf.com
https://www.latex-project.org/
5. Markdown tools
4.1 Covert markdown to html
https://markdowntohtml.com/
4.2 table generator
https://www.tablesgenerator.com/markdown_tables