LaTeX
Configuration
I prefer to configure formular delimiters with the way using brackets:
inline: \(...\)
display: \[...\]
display + equation number: \[...\] (1)
For vscode, install extension Markdown+Math, then change Configuration from dollars into brackets.
For mathJax, it’s provided in the default configuration.
Good memory is not as bad as a pen.
Permutation
A_n^n=n\times(n-1)\times(n-2)\times...\times2\times1
A_n^m=n\times(n-1)\times(n-2)\times...\times(n-m+1) = \frac{n!}{(n-m)!}
Combination
C_n^m=\frac{A_n^m}{A_m^m} = \frac{n!}{m!(n-m)!}
C_n^m=C_n^{n-m}
C_{n+1}^{r+1} = C_n^r + C_n^{r+1}
Binomial theorem
(a+b)^n = \sum_{i=0}^n{{C_n^i}a^{n-i}b^i} \tag 1
2^n =\sum_{i=0}^n{{C_n^i}} = C_n^0 + C_n^1 + C_n^2 + ... + C_n^n
VSCode Plugin
https://marketplace.visualstudio.com/items?itemName=goessner.mdmath
Hugo
see mathjax_support.html
and replace cmd {{ replaceRE "\\[ (.*) \\]" "\[ $1 \]" .Content | safeHTML }} to fix markdown escape backslash problem.
- problem to be solved
equation number problem
echo "Hello World"
\begin{equation} E=m \end{equation}
\begin{equation}
E=m
\end{equation}