Notes
Test> and hit <Enter>.Note the type of functions and the syntax of function application.
Note the type of functions with two parameters and their application.
Note the syntax of operators.
Make a diagram similar to the “no entry” sign shown here (hint: use lengths 2, 5 and 8):
Note the application of functions with two parameters as operators.
Note that the precedence of move is higher than the precedence of <|>.
Make a diagram similar to the door shown here (hint: use lengths 0, 2, 6, 10, 14 and 20):
Note the type of lists and the syntax of conctrete lists.
Make a diagram similar to the coins shown here (hint: the radius of the circles are 4):
Make a diagram similar to the stairs shown here (hint: use lengths -5, 1, 2, 5):
Make a diagram similar to the cage shown here (hint: use lengths -5, 1, 2, 4, 20):
The radius of the spheres are 1.5x, x∈{-5,-4,…,4,5}.
The exponentiation operator is: **
A function used is x ↦ x2/10.
The new functions used here are pi, sin and cos.
Predefined colors: black, gray, white, red, green, blue, yellow
Note the type of constants (nothing special though).
The used length is 10.
This is just a demo what can we define later.
The following code describes a tree with n levels:
tree n
| n <= 0 = empty
| otherwise
= pack (tree (n-1)) $ \t ->
((0,0)~~(0,-5) <|> t `rotate` 15 <|> t `rotate` (-15))
`move` (0,5) `scale` 0.8Here is the tree with 6 levels:
(WARNING: you can kill your browser with more than 8 levels!)