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Math Symbols
The Most Valuable and Important
Symbols For Set Notation In Use:

"Specialized Set Notations"

Math - Specialized Set Notations N (natural numbers), Z (integers), Q (rational numbers), and R (real numbers)

Math Symbols: . . . why math symbols are used . . .

Symbols are a concise way of giving lengthy instructions related to numbers and logic.


Symbols are a communication tool. Symbols are used to eliminate the need to write long, plain language instructions to describe calculations and other processes.

For example, a single symbol stands for the entire process for addition. The familiar plus sign eliminates the need for a long written explanation of what addition means and how to accomplish it.

The same symbols are used worldwide . . .

The symbols used in mathematics are universal.

The same math symbols are used throughout the civilized world. In most cases each symbol gives the same clear, precise meaning to every reader, regardless of the language they speak.

The most valuable, most frequently used Symbols in mathematics . . .

The most important, most frequently used Symbols for Set Notation are listed below.


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Math - Specialized Set Notations N (natural numbers), Z (integers), Q (rational numbers), and R (real numbers) Symbols for Specialized Set Notations: "N, Z, Q, and R" -

Math - Set of All Natural Numbers stands for the "set" of all natural numbers:

Math - Set of All Natural Numbers = {1, 2, 3, 4, . . .}

Math - Set of All Integers stands for the "set" of all integers:

Math - Set of All Integers = {. . . -3, -2, -1, 0, 1, 2, 3 . . .}

Math - Set of all Rational Numbers stands for the "set" of all rational numbers:

Math - Set of all Rational Numbers = {x/y : x Symbol for Element of a Set Math - Set of All Integers , y Symbol for Element of a Set Math - Set of All Natural Numbers }

Math - Set of all Real Numbers stands for the "set" of all real numbers:

Math - Set of all Real Numbers = {All "Real" Numbers}