The small sections of code that are used to perform a particular task is called

(a)

Subroutines

(b)

Files

(c)

Pseudo code

(d)

Modules

Which of the following is a unit of code that is often defined within a greater code structure?

(a)

Subroutines

(b)

Function

(c)

Files

(d)

Modules

Which of the following is a distinct syntactic block?

(a)

Subroutines

(b)

Function

(c)

Definition

(d)

Modules

The variables in a function definition are called as

(a)

Subroutines

(b)

Function

(c)

Definition

(d)

Parameters

Which of the following carries out the instructions defined in the interface?

(a)

Operating System

(b)

Compiler

(c)

Implementation

(d)

Interpreter

The functions which will give exact result when same arguments are passed are called

(a)

Impure functions

(b)

Partial Functions

(c)

Dynamic Functions

(d)

Pure functions

The function definition is introduced by the keyword

(a)

def

(b)

rec

(c)

let

(d)

infer

What is a subroutine?

Write the inference you get from X : = (78).

Differentiate interface and implementation.

Which of the following is a normal function definition and which is recursive function definition
i) let rec sum x y:
        return x + y
ii) let disp:
       print ‘welcome’
iii) let rec sum num:
         if (num!=0) then return num + sum (num-1)
         else
                 return num

Differentiate parameters and arguments.

Give an example of function definition parameter without type.

Mention the characteristics of Interface.

Explain the syntax of function definitions.

Write an algorithm to check whether the entered number is even or odd.

Write a short note an syntax for function types.

Identify in the following program
let rec gcd a b:=
           if b <> 0 then gcd b (a mod b)
           else return a:
i) Name of the function
ii) Identify the statement which tells it is a recursive function
iii) Name of the argument variable
iv) Statement which invoke the function recursively
v) Statement which terminates the recursion

Explain with example Pure and impure functions.

Explain with an example interface and implementation.