Sergiu Ivanov

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~~TRANS~~

===== Haskell for Life =====

The goal of this course is to familiarise the students with the
computational model behind a mainstream high-abstraction functional
programming language, with focus on developing practical skills.
After having taken this course, the students will be able to solve
practical programming problems of medium complexity by writing
idiomatic Haskell code and making use of the rich library ecosystem.

The course is intended for a wide audience and only requires basic
programming skills in one of the other mainstream languages (C/C++,
Java, C\#/.NET, Python, etc.).

The course relies heavily on showing actual interactive Haskell sessions and should be directly driven by feedback from the students.

The course consists of 4 parts, the first 3 of which introduce some essential concepts, and the last one focuses on practical examples of parallel and concurrent programming.  The parts of the course may be taught over multiple sessions; in particular, the first part should most probably be spread over two sessions to help students digest the basic concepts.

The materials of this course are distributed under the [[https://en.wikipedia.org/wiki/Creative_Commons_license|Creative Commons Attribution Alone licence]] {{:ccby.png?60}}

==== 1. Introduction ====

The fundamental ideas behind functional
programming are introduced, with particular focus on handling
functions as first-class values and on higher order functions.
Strict and static typing discipline in Haskell is discussed and
compared to typing disciplines in other mainstream programming
languages.  Basic syntax is described along with the explanations,
including the syntax for definitions of simple data types.

==== 2. Typeclasses ====

Typeclasses in Haskell are introduced and
compared to classes and types in other mainstream programming
languages.  Subtle differences are pointed out and discussed at
length to avoid confusion.

==== 3. Monads ====

Monads as a way to encapsulate repetitive details of the computation are introduced.  The ''Maybe'' and ''List'' monads are described.  An overview of the monads ''Reader'', ''Writer'', and ''State'' is provided.

==== 4. Parallel and Concurrent Programming ====

Techniques of parallel and concurrent programming in Haskell are described.  Sparks as building blocks for a parallel program are discussed.  Spawning threads and synchronising them via thread-safe shared storage is covered.  A basic port scanner is presented as a practical example.
Sergiu Ivanov

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