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Within LTS Haskell 24.42 (ghc-9.10.3)

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package gridtables

Parser for reStructuredText-style grid tables. Provides a parser for plain-text representations of tables. This package supports table headers, cells spanning multiple columns or rows, as well as a way to specfiy column alignments.
package gtk

Binding to the Gtk+ graphical user interface library. This is the core library of the Gtk2Hs suite of libraries for Haskell based on Gtk+. Gtk+ is an extensive and mature multi-platform toolkit for creating graphical user interfaces.
package hackage-db

Access cabal-install's Hackage database via Data.Map This library provides convenient access to the local copy of the Hackage database that "cabal update" creates. Check out https://github.com/NixOS/hackage-db/tree/master/example/ for a collection of simple example programs that demonstrate how to use this code.
package haddock-library

Library exposing some functionality of Haddock. Haddock is a documentation-generation tool for Haskell libraries. These modules expose some functionality of it without pulling in the GHC dependency. Please note that the API is likely to change so be sure to specify upper bounds in your projects. For interacting with Haddock itself, see the haddock package.
package haha

A simple library for creating animated ascii art on ANSI terminals. A simple library for creating animated ascii art on ANSI terminals.
package haskell-src

Support for manipulating Haskell source code The haskell-src package provides support for manipulating Haskell source code. The package provides a lexer, parser and pretty-printer, and a definition of a Haskell abstract syntax tree (AST). Common uses of this package are to parse or generate Haskell 98 code.
package haskoin-core

Bitcoin & Bitcoin Cash library for Haskell Please see the README on GitHub at https://github.com/jprupp/haskoin-core#readme
package hasql-pool

Pool of connections for Hasql Pool of connections for Hasql
package hasql-transaction

Composable abstraction over retryable transactions for Hasql Composable abstraction over retryable transactions for Hasql
package hasty-hamiltonian

Speedy traversal through parameter space. Gradient-based traversal through parameter space. This implementation of HMC algorithm uses lens as a means to operate over generic indexed traversable functors, so you can expect it to work if your target function takes a list, vector, map, sequence, etc. as its argument. If you don't want to calculate your gradients by hand you can use the handy ad library for automatic differentiation. Exports a mcmc function that prints a trace to stdout, a chain function for collecting results in memory, and a hamiltonian transition operator that can be used more generally.
```
import Numeric.AD (grad)
import Numeric.MCMC.Hamiltonian

target :: RealFloat a => [a] -> a
target [x0, x1] = negate ((x0 + 2 * x1 - 7) ^ 2 + (2 * x0 + x1 - 5) ^ 2)

gTarget :: [Double] -> [Double]
gTarget = grad target

booth :: Target [Double]
booth = Target target (Just gTarget)

main :: IO ()
main = withSystemRandom . asGenIO $ mcmc 10000 0.05 20 [0, 0] booth
```

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