Lost in Technopolis
This article assumes familiarity with monads and monad transformers. If you’ve never had an occasion to use lift yet, you may want to come back to it later. The Problem What is the problem that monad-control aims to solve? To answer that, let’s back up a bit. We know that a monad represents some kind of “computational context”. The question is, can we separate this context from the monad, and reco
Haskell Programming
Finally we see the agreement with our expectations. Iterative deepening now needs only 2MB (down from 56MB in the first try) to compute the first 100 Pythagorean triples. We may now try bigger searches. We have seen that lazy evaluation is a trade-off, which may be hurtful in some cases, in particular, in search problems over huge data structures, where it is often beneficial to recompute the resu
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