Compsci Data Representati

What is a natural number?

A natural number is any positive integer, starting from 1 and increasing indefinitely (1, 2, 3, …). They are often used for counting and ordering.

What is a rational number?

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. This includes integers, whole numbers, and finite or repeating decimals.

Irrational number?

An irrational number is a number that cannot be expressed as a simple fraction, meaning it cannot be represented as the quotient of two integers. Examples include non-repeating, non-terminating decimals like π and √2.

Which number group is represented as Q?

^{Rational numbers}

Represented as R?

Real numbers

Represented as Z?

^{Integers(natural)}