Haskell

Haskell

1. It is a functional programming language

   • Several operators can be used
     • When it is a negative number it is recommended to use ()
     • Each operator is executing a function
       • Known as infix function
       • Most functions that do not use numbers are usually prefixed
   • You can compare elements but they must be of the same type of data
     • The inequality test is / =

2. The ghci statement must be used for its correct compilation

3. When using the if condition, it is mandatory to use

4. To call a function write the name of the function and the parameters separated by spaces

   • you can use functions with operators
   • The functions can be used infixed like the operators
   • you can call a function in the call to another
     • bar (barra 3)
   • after creating the function in a text file it runs like this ":l functionName.hs"
     • this operation should be used when changes are made
   • The functions should not be in a particular order
   • Functions can not start with capital letters

5. The lists are the most used data structure

   • a list must be of a data type for example a list of integers
     • Ranks can be used to fill lists for example [1..20]
       • you can specify how a range is increased
       • Do not use floating numbers in list ranges
       • You can create infinite lists
       • Comprehension lists that are used to use a range of a function
   • To join two lists is used ++
   • The chains are lists
   • the operator can be used: to add to the start of a list
     • these methods can be used in lists head, tail, last and init
   • a list can contain lists
   • you can compare lists with the same operators

6. tuples can have a combination of several types