eqn2graph

Equation description to graphic image converter

TLDR

Convert equation to image

$ echo "x = {-b +- sqrt{b sup 2 - 4ac}} over 2a" | eqn2graph > [equation.png]

Specify output format

$ echo "[equation]" | eqn2graph --format [svg]

Set font size

$ echo "[equation]" | eqn2graph -s [14]

eqn2graph converts eqn equation descriptions into graphic images. It's a wrapper that processes eqn input through groff and converts the output to various image formats.The tool reads equation text from stdin using eqn syntax and produces image files suitable for embedding in documents, web pages, or presentations.eqn2graph is useful for generating standalone equation images without full document processing.

PARAMETERS

--format FORMAT

Output format: png, svg, pdf, etc.

-s SIZE

Font point size.

-unsafe

Allow unsafe operations.

-v

Verbose mode.

INSTALL

sudo apt install groff

sudo dnf install groff

sudo pacman -S groff

sudo apk add groff

sudo zypper install groff

brew install groff

nix profile install nixpkgs#groff

CAVEATS

Requires groff and an image conversion tool (typically GraphicsMagick or ImageMagick). The default output format is PNG. Uses eqn syntax, not LaTeX math notation.

HISTORY

eqn2graph is part of the groff suite, providing a convenient way to generate equation images from eqn's preprocessor language.