math-equation-images

name	math-equation-images
description	Generate PNG images from math equations in a LaTeX/TeX or Markdown document. Triggered when user says they need images for math equations, formulae, or matrices. The document can be provided inline in the message body or as a Telegram file attachment. Generated images are sent back as Telegram messages. Supports dark (default) and light themes — user can request "light" or "dark" style.

Math Equation Images

Extract math equations from LaTeX/TeX or Markdown documents and render each as a PNG image.

Binary

• {baseDir}/scripts/math2img — Renders math equations to PNG images.

Workflow

1. Extract Document

• Inline: Extract LaTeX/Markdown text from the message body (everything after the request)
• File attachment: Read the file from the Telegram media path

2. Save Document

Write the content to a temp file with the appropriate extension:

• .tex for LaTeX/TeX content
• .md for Markdown content

cat > /tmp/math_input.tex << 'DOCEOF'
<document content here>
DOCEOF

3. Render Math Images

Run math2img on the document:

mkdir -p /tmp/math_output
{baseDir}/scripts/math2img -i /tmp/math_input.tex -o /tmp/math_output

Options:

• --theme <dark|light> — Color theme. Default: dark
• --font-size <px> — Font size. Default: 24
• --scale <factor> — Scale factor. Default: 3.0

Style selection: If the user requests "light" style/theme, use --theme light. Default is dark. The user may also say "light mode", "white background", "light theme", etc.

4. Send Images via Telegram

Copy rendered PNGs to the allowed media directory, then send via the message tool:

cp /tmp/math_output/equation_0001.png ~/.openclaw/media/inbound/equation_0001.png

Send with:

• action: send
• filePath: ~/.openclaw/media/inbound/equation_0001.png
• caption: "Equation 1"

Send all images in order. If no equations found, tell the user.