$ ./latex2svg.py --help
usage: latex2svg.py [-h] [--preamble PREAMBLE]

Render LaTeX code from stdin as SVG to stdout. Writes metadata (baseline
position, width, height in em units) as JSON to stderr.

optional arguments:
  -h, --help           show this help message and exit
  --preamble PREAMBLE  LaTeX preamble code to read from file

$ echo "\\( e^{i \\pi} + 1 = 0 \\)" | ./latex2svg.py > euler-identity.svg
{"width": 4.458858333333334, "height": 0.8262691666666666, "depth": 0.012687666666666667}