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# Number Classification

Classification of numbers for Honors Algebra 2
by

## Stephanie Hirsch

on 17 August 2010

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#### Transcript of Number Classification

Number
Classification Integers
The set of numbers containing zero, the natural numbers, and all the negatives of the natural numbers Digits
The ten symbols 0,1,2,3,4,5,6,7,8,9 Whole
The set of numbers that includes 0 and all of the natural numbers Natural (Counting)
The numbers you use to count Real
The union of the set of rational numbers and irrational numbers Positive
A real number greater than zero Negative
A real number less than zero Imaginary
A number of the form bi, where b is a real number and i^2 = -1 Transcendental
A real or complex number which is not algebraic, that is, not a solution of a non-zero polynomial equation with rational coefficients. (ex: pi,e) Even
A natural number that is divisible by 2 Numbers are numbers right? Some are..... BIG And some are... small But how do we differentiate between them? By classifying them. Most numbers are part of two main groups However... Complex numbers, written as a + bi, have both a real part, a, and an imaginary part, bi. These numbers are neither real or imaginary, but all numbers are complex. Real numbers can split into two separate groups. Rational
A number that can be expressed as the ratio of two integers. Irrational
A number that cannot be expressed as the ratio of two integers These two groups can be divided even further. There are a few other subsets of real numbers Let's review!! Natural Whole Integers Rational Irrational Real Imaginary Complex (all numbers)
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