Short Math Guide on CTAN

The Short Math Guide for LaTeX is now available on CTAN. It has been significantly updated, contains more up-to-date information and additional notes such as about discouraged syntax and new recommendations. From 17 pages it grew to 21 pages. Furthermore, the source code of the document is now available. It covers all math basics and is a very efficient guide for the smart reader.

Here you can find it: https://ctan.org/pkg/short-math-guide

Getting bold math symbols

Load the bm package in your preamble. Do this after all packages, which define symbol fonts. If you are not sure about this, place this line below all font packages:

Declare a command for each bold symbol:

Use the new macros in your document within math mode.