natural number

Integer z

Rational number q

Real r imaginary I

Complex number c

Where each number set is a subset of the following number sets, including:

Integers include natural numbers, 0 and negative integers;

Rational numbers contain integers and fractions;

Real numbers include rational numbers and irrational numbers;

Complex numbers include real numbers and imaginary numbers.

Your question is just like asking what the symbols of all negative score sets are, and it doesn't make much sense.

Negative integer = Z-N-0

Score = Q-Z

Irrational number = R-Q

In mathematics, irrational numbers are all real numbers of irrational numbers, which are numbers composed of the ratio (or fraction) of integers. When the length of two line segments is irrational, the line segments are also described as incomparable, that is, they cannot be "measured", that is, they have no length ("measured").

Common irrational numbers are: the ratio of circumference to diameter, Euler number e, golden ratio φ and so on.

Extended data:

Irrational numbers can also be treated with non-terminating continued fractions.

Irrational number refers to a number that cannot be expressed as the ratio of two integers within the real number range. Simply put, an irrational number is an infinite cyclic decimal with 10 as the base, such as pi,? Wait a minute.

Rational numbers are composed of all fractions and integers, which can always be written as integers, finite decimals or infinite cyclic decimals, and can always be written as the ratio of two integers, such as 2 1/7.

If the positive integer n is not a complete square number, it is not a rational number (it is an irrational number).

References:

Baidu encyclopedia-irrational number