python - Matplotlib custom marker/symbol - Stack Overflow
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pgfplots - Different marker shape for pgf/TikZ - TeX - LaTeX Stack Exchange
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Pgfplots package - Overleaf, Online LaTeX Editor
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Pgfplots package - Overleaf, Online LaTeX Editor
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ROOT: TAttMarker Class Reference
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python - Matplotlib some LaTeX symbols not scaling with increased figure sizes - Stack Overflow
28 Working with symbols and glyphs | Interactive web-based data visualization with R, plotly, and shiny
Pgfplots package - Overleaf, Online LaTeX Editor
