Number systems
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What is a natural number?
A non-negative integer
How is the set of natural numbers notated?
N
What is an integer?
A whole positive or negative number, including zero
How is the set of integers notated?
Z
What is a rational number?
A number that is able to be expressed as a fraction of two integers
How is the set of rational numbers notated?
Q
What is an irrational number?
A number that is unable to be expressed as a fraction of two integers
What is a real number?
A positive or negative number, including zero
How is the set of real numbers notated?
R
What is an ordinal number?
A number used to identify position in a set
What is a cardinal number?
A number used to identify the size of a set
What is a well ordered set?
A set with a defined order
What is an array?
A data structure where data items are grouped together under a single identifier and are then accessed based on their position