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== Review of Complex Number == | == Review of Complex Number == | ||
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Revision as of 17:36, 1 September 2008
Review of Complex Number
Defination
Imaginary number comes to use when people want to refer to a number which could not be represented by any real number,
such as the square root of a negative number. When we combine a real number and an imaginary number together, we get a complex number.
We use i to represent $ sqrt(-1) $.
