Compilation of miscellaneous tools

Useful web tools I have found for maths. In descending order of how well known they are (approximately)

• Complex Function Plotter: Visualising complex mappings (I’ve made a version of it that directly supports \(\mathbb{R}^2\) to \(\mathbb{R}^2\) mappings here)
• Field Play: Visualising vector fields
• Quiver: For drawing commutative diagrams
• Mathematical operators and symbols in Unicode: Finding symbols in Unicode (that you can use in “plain text”)
• Unicode superscript generator: Combined with symbols, it lets you imitate simple \(\LaTeX\) with just unicode, (e.g. ℝ², eˣ)
• Detexify: Finding symbols in \(\LaTeX\)

General Tools

• randoma11y: Generate random color schemes with sufficient color contrast
• MyOSMatic: Generate your own map from OSM
• Microsoft Paint Online: Open-Source, Web Components-based remake of MS Paint using modern web capabilities

Thanks to Isaac Li for telling me about Field Play and randoma11y.