Complex Numbers
We have to go from Complex to Rectangular:
There is a correlation and connection between complex - polar - rectangular
As you may notice, the complex number: -2 + 0i is plotted in the polar coordinate.
On the rectangular plane, by definition a + bi can be rewritten as (a, b).
Therefore, -2 + 0i complex = (-2, 0) rectangular.
The Unit Circle
This imaginary "i" chart helps students quickly identify correlating complex numbers for reference.
i0= 1
i1= i
i2= -1
i3= -i
i4= 1
This pattern may help comprehend the complex "i" quickly.
The most useful property is i2 =-1 and i = -1