Okay, everyone probably knows this. Let's get a bit more advanced.
Removing recursion via explicit callstack simulation
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“我这馆小，但都是熟人。换个大牌子，学费涨了，人可能就跑了。”她说。
The de facto tool to create Haskell notebooks is iHaskell. We’ve explored the design of iHaskell before. It is the obvious baseline for Sabela. IHaskell demonstrates that a Haskell notebook can be useful and productive. It also exposes three friction points that strongly shape Sabela’s design: