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Might not be as comprehensive as Soulver, but here's something I've been using in a browser to fiddle with: https://cruncher.io/.

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> Cruncher can also automatically plot changes as you adjust a variable

Well that's pretty neat. I've seen it in fancier setups, but not something Soulver-like. It seems a lot more usable here, since practically any equation can show it.

Gosh, everyone has made one of these haven't they?

I have as well :-) but I lose for not having released. This version is pretty cool though, will probably not gonna use it because same reason I didn’t evolve my version. Don’t need it, and when I need it I don’t need for it to be dynamic.

Not everyone! About five people from a population of six billion. And you’re one of them.

Yours looks great. Well done on the release.

Line 100 might have an error though? It isn’t recognising `30th Sept`, does it not like the final `t`?

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