Classes

Question 1

Eq

Answer 1

equality types:

types whose values can be compared for equality

Question 2

Ord

Answer 2

ordered types:
class contains types of the Eq whose values are totally ordered

Question 3

Show

Answer 3

showable types :

types whose values can be converted into strings

Question 4

Read

Answer 4

readable types:

dual to Show, contains types whose values can be converted from strings

Question 5

Num

Answer 5

numeric types have values which are numbers

Question 6

Integral

Answer 6

contains instances of the numeric class Num whose values are integer and support integer division and integer remainder

Question 7

Fractional

Answer 7

contains instances of the numeric class Num whose values are not Integral and support fractional division and remainder

Question 8

What are the Eq methods?

Answer 8

(==) :: a -> a -> Bool

(/=) :: a -> a -> Bool

Question 9

What are the Ord methods?

Answer 9

( a-> Bool
(<=) :: a-> a-> Bool
(>) :: a-> a-> Bool
(>=) :: a-> a-> Bool
min :: a-> a-> a
max :: a-> a-> a

Question 10

What are the Show methods?

Answer 10

show :: a-> String

Question 11

What are the Read methods?

Answer 11

read :: String -> a

Question 12

What are the Num methods?

Answer 12

(+) :: a -> a -> a
(-) :: a -> a -> a
(*) :: a -> a -> a
negate :: a -> a 
abs :: a -> a
signum:: a -> a

Question 13

What are the Integral methods?

Answer 13

div :: a-> a-> a

mod :: a-> a-> a

Question 14

What are the Fractional methods?

Answer 14

(/) :: a -> a-> a

recip :: a -> a