Difference between revisions of "Real number"

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A '''real number''' is a number that falls on the real number line. It can have any value. Some examples of real numbers are:<math>1, 2, -23.25, 0, \frac{\pi}{\phi}</math>, and so on. Numbers that are not real are  3i, 3+2.5i, 3+2i+2j+k, i.e. complex numbers, and quaternions.
 
A '''real number''' is a number that falls on the real number line. It can have any value. Some examples of real numbers are:<math>1, 2, -23.25, 0, \frac{\pi}{\phi}</math>, and so on. Numbers that are not real are  3i, 3+2.5i, 3+2i+2j+k, i.e. complex numbers, and quaternions.
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The set of real numbers is denoted by <math>\mathbb{R}</math>.
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== See Also ==
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*[[Natural number]]
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*[[Integer]]
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*[[Rational number]]
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*[[Irrational number]]
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*[[Complex number]]

Revision as of 09:07, 22 June 2006

A real number is a number that falls on the real number line. It can have any value. Some examples of real numbers are:$1, 2, -23.25, 0, \frac{\pi}{\phi}$, and so on. Numbers that are not real are 3i, 3+2.5i, 3+2i+2j+k, i.e. complex numbers, and quaternions. The set of real numbers is denoted by $\mathbb{R}$.


See Also

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