A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

 i (Unit Imaginary Number)

more ...

i (Unit Imaginary Number)
The square root of minus 1.

The symbol is "i"

When you square any Real Number you always get a positive, or zero, result. For example 2×2=4, and (-2)×(-2)=4 as well.

So how can we square a number and get a negative result? Just "imagine" that we can, and it turns out that such a number, which may seem impossible, is actually useful and can solve real problems.

Search :: Index :: About :: Contact :: Contribute :: Cite This Page :: Privacy

Copyright © 2011 MathsIsFun.com