brilliant work, polished ui. although sometimes give wrong ranges for equations like 100/1~(200~2000)

Can you elaborate? What is the answer you’re getting and what answer would you expect?

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How do you process this equation ? 100 divided by something from one to ...?

> 100 / 4~6

Means "100 divided by some number between 4 and 6"

Yes, but this is not what op has. Their formula is 100 / 1~(20~200), with a double tilde

"...some number with a 95% probability of falling between 4.0 and 6.0 inclusive," I believe.