Haskell is a purely functional programming language that uses expression evaluations and is written on a Haskell platform. It uses lambda calculus and lazy evaluation properties to execute infinite streams of data. Haskell has a static typing system and is often used for programs that need to be updated regularly. It is named after mathematician Haskell Brooks Curry and is available for free download with tutorials and guides.
Haskell is an advanced computer programming language. Considered purely functional programming, the language consists of expression evaluations. These expressions are typically written in a format where one part of the expression is equal to another. The language is written on a Haskell platform and can be easily integrated with other computer programming languages.
Based on the lambda calculus system, Haskell uses the Greek lambda symbol as its logo. Lambda calculus examines the relationships within mathematical functions, function application, and recursion. This mathematical system works on the theory that simpler, shorter equations are more powerful than long, complicated ones, and this provides Haskell with the foundation for its intuitive, easy-to-learn format.
The structure of expressions executed in Haskell allows a program to theoretically execute infinite streams of data. This is due to the language’s lazy evaluation properties, which means that an expression is essentially idle until it is needed in conjunction with another statement. Once it is needed, the expression will output the needed values and move on to the next expression. If programmed as such, it can create an infinite loop of data.
Haskell uses a static typing system. This allows the program to check itself for errors before the program runs, making it possible to detect errors in the code before the program is completed. Static typing is believed to result in more efficient code than its dynamic counterpart and has the advantage of verifying itself as it is being written. This can be a huge time saver if a bug occurs in the core and essential functional areas of the code; if it isn’t discovered until the program is run, it can mean a major rewrite.
Often used for programs that need to be changed or updated on a regular basis, Haskell has enough in common with other programming languages to often be a stepping stone for programmers setting out to work with another language. Haskell can accommodate both numeric and symbolic programming and has been used by major companies. Its longevity has been partly due to its ease of use and constant updates.
The language is named after mathematician Haskell Brooks Curry, who did much of his work in formal system and process theory. His research in mathematical logic formed the foundation upon which computer programming languages were built, including the one he named after him. Curry died in 1982, aged 82.
The Haskell programming platform is available for download from many sites, including the company page. The download is free and includes tutorials and guides for the novice programmer.
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