tagrefsorter 0.2.1

CLI tool to normalize LaTeX \tag numbering in Jupyter Notebook files

tagrefsorter

A CLI tool to normalize LaTeX \tag{} numbering in Jupyter Notebook (.ipynb) files.

Installation

pip install tagrefsorter

Usage

tagrefsorter path/to/notebook.ipynb

The notebook is overwritten in place.

Algorithm Overview

tagrefsorter processes LaTeX math blocks in markdown cells of a Jupyter Notebook and normalizes equation numbering based on the following rules:

• For each display math block written as $$ ... $$, a LaTeX \tag{} is added if missing, or updated if already present, so that equation numbers become sequential.

• If a display math block contains an align environment,

  $$\begin{align}
  ...
  \end{align}$$
  

  then each line inside the align environment is treated as an individual equation. A \tag{} is added or updated for each line, and equation numbers are assigned sequentially in appearance order.

• Existing tags of the form \tag{x} are considered author-specified equation identifiers. If a markdown cell contains a reference written as $(x)$, it is interpreted as a reference to \tag{x}. When equation numbers are renumbered, all corresponding $(x)$ references are automatically updated to match the new equation number.

As a result, equation numbering and references remain consistent even after equations are reordered, added, or removed.