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C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 13 of 13
Avg Rating: 5
(13)Well, my friends, the day has arrived. For thirteen weeks, you have been provided all the conceptual tools to take the leap into the deep end of the functional programming pool and float safely. The great Dr. Erik Meijer has generously given his value time to teach us the fundamentals as delivered… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 12 of 13
Avg Rating: 5
(13)In Chapter 12, Lazy Evaluation, Dr. Meijer takes us on a journey into the world of order of evaluation (when expressions are evaluated). In the case of lazy evaluation, computation is delayed until the result of the computation is known to be required. Most programming languages that most of you use… 
C9 Lectures: Dr. Graham Hutton  Functional Programming Fundamentals Chapter 11 of 13
Avg Rating: 4
(11)Yes. You read the title correctly! For today's lecture in the Functional Programming Fundamentals series of lectures the great Dr. Graham Hutton, author of the Programming in Haskell book that Dr. Erik Meijer has based this lecture series on, is guest lecturing Chapter 11  The Countdown Problem!… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 10 of 13
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(12)In Chapter 10, Declaring Types and Classes, Dr. Meijer teaches us about type declarations, data declarations, arithmetic expressions, etc. In Haskell, a new name for an existing type can be defined using atype declaration:type String = [Char]String is a synonym for the type [Char].Like function… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 9 of 13
Avg Rating: 5
(11)In Chapter 9, Interactive Programs, Dr. Meijer will teach us how to make programs in Haskell that are sideeffecting:interactive. Haskell programs are pure mathematical functions with no side effects. That said, you want to be able to write Haskell programs that can read input from the keyboard and… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 8 of 13
Avg Rating: 4
(11)In Chapter 8, Functional Parsers, it's all about parsing and parsers. A parser is a program that analyses a piece of text to determine its syntactic structure. In a functional language such as Haskell, parsers can naturallybe viewed as functions. type Parser = String > TreeA parser is a… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 7 of 13
Avg Rating: 5
(15)In Chapter 7, Dr. Meijer teaches us about HigherOrder Functions. A function is called higherorder if it takes a function as an argument and returns a function as a result:twice :: (a > a) > a > atwice f x = f (f x)The function twice above is higher order because it takes a function… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 6 of 13
Avg Rating: 5
(15)In Chapter 6, Dr. Meijer guides us through the world of recursive functions. In Haskell, functions can be defined in terms of themselves. Such functions are called recursive. For example: factorial 0 = 1factorial (n+1) = (n+1) * factorial nfactorial maps 0 to 1, and any other positive… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals Chapter 5 of 13
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(21)In Chapter 5, Dr. Meijer introduces and digs into List Comprehensions. In mathematics, comprehension notation is used to construct new sets from old sets. In Haskell, you can create new lists from old lists using a similarcomprehension syntax:[x^2  x < [1..5]]The above notation represents the… 
C9 Lectures: Dr. Erik Meijer  Functional Programming Fundamentals, Chapter 3 of 13
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(19)In Chapter 3, Dr. Meijer explores types and classes in Haskell. A type is a collection of related values and in Haskell every wellformed expression has a type. Using type inference, these types are automatically calculated at run time. Ifexpression e returns a type t, then e is of type t, e :: t. A…