(→Defination) |
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== Defination== | == Defination== | ||
| − | + | ||
Imaginary number comes to use when people want to refer to a number which could not be represented by any real number, | 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. | + | 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. | ||
| + | |||
| + | == Imaginary Number == | ||
| − | + | We use i to represent <math>sqrt(-1)</math>. | |
| − | + | ||
Revision as of 17:35, 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.
Imaginary Number
We use i to represent $ sqrt(-1) $.
