essic

emacs --daemon to run in the background. emacsclient.emacs24 <filename/dirname> to open in terminal

NOTE: "M-m and SPC can be used interchangeably".

• Undo - C-/
• Redo - C-?
• Change case: 1. Camel Case : M-c 2. Upper Case : M-u

3. Lower Case : M-l

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SPC s c remove highlight

**** Files manipulations key bindings
Files manipulation commands (start with ~f~):

| Key Binding | Description                                                    |
|-------------+----------------------------------------------------------------|
| ~SPC f c~   | copy current file to a different location                      |
| ~SPC f C d~ | convert file from unix to dos encoding                         |
| ~SPC f C u~ | convert file from dos to unix encoding                         |

essic

data Race = White | Black | Asian | Indian | Unknown
  deriving (Show)

data HumanInformations = HumanInformations 
  {
      name :: String , age :: Int , weight :: Int, race :: Race
  } deriving(Show)

data Human = Male HumanInformations | Female HumanInformations
  deriving(Show)

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accumulate :: (a -> b) -> [a] -> [b]
accumulate _ [] = []
accumulate f (x:xs) =  f x : accumulate f xs


data Planet = Mercury
            | Venus
            | Earth
            | Mars
            | Jupiter

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data LinkedList a =
  Cons a (LinkedList a) | Nil
    deriving (Show)

push :: a -> LinkedList a -> LinkedList a
push x y =
  Cons x y
  
push_back :: a -> LinkedList a -> LinkedList a
push_back a Nil =

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data ComplexNumber =
    Polar { theta:: Float, radius:: Float } -- r * theta * i
  | Algebraic { real :: Float, imaginary :: Float } -- a +bi
  deriving(Show)

add:: ComplexNumber -> ComplexNumber -> ComplexNumber
add cn1 cn2 =
  Algebraic (a1 + a2) (b1 + b2)
    where