Write a program to find whether the given number is odd or even (Prolog).
Answer (1)
To determine whether a given number is odd or even using Prolog, you can create a simple Prolog program. Prolog is a logic programming language associated with artificial intelligence and computational linguistics. Here is a step-by-step guide to writing a program to check for odd or even numbers:
Understanding Odd and Even Numbers:
An even number is any integer that is exactly divisible by 2, meaning the remainder is 0 when divided by 2.
An odd number is any integer that is not exactly divisible by 2, meaning there is a remainder of 1 when divided by 2.
Prolog Syntax Basics:
In Prolog, logical statements are expressed as facts and rules.
You define relationships and use queries to ask about those relationships.
**Writing the Program: **
% Define a rule to check if a number is even is_even(Number) :- Number mod 2 =:= 0.
% Define a rule to check if a number is odd is_odd(Number) :- Number mod 2 == 0.
is_even(Number) is a predicate that succeeds if Number is even.
Number mod 2 =:= 0 is a logical condition that checks if the remainder of Number divided by 2 is 0.
is_odd(Number) is similar but checks if the remainder is not 0.
**Using the Program: **
You can query the program to check a specific number. For example:
?- is_even(4). true.
?- is_odd(4). false.
?- is_odd(3). true.
?- is_even(3). false.
When you run this program in a Prolog interpreter, you can use queries like is_even(4) or is_odd(3) to determine if numbers are even or odd. The program checks the condition and returns true or false accordingly.
This example demonstrates a basic understanding of how you can use Prolog's logical reasoning capacities to solve simple mathematical problems.
