I want to write a (math-heavy) personal diary in LaTex. I thought of each entry be a section; something like

\section{Some title, 2017-01-13}

In addition, and as in a blog, I would like to categorize my entries (via a special command?) and would like LaTex to generate a ToC for every category.

E.g.

Category Calculus

Calculus, 2016-09-01

Derivatives, 2016-10-01

Category Algebra

Vectors, 2016-12-02

Matrices, 2017-01-02

How can I achieve this? I'm also grateful for pointers to similar projects (templates).

## Best Answer

A proposition, with some slightly redefined

`\section`

command, getting an 2nd optional argument at the end, meant for the category -- the default value for this optional argument is`Calculus`

here.The

`ToC`

is generated as a separated index, which has the advantage of sorting with `makeindex.Please note that there are no fancy decorations here for the section title etc.