[size=200]We have to go from Complex to Rectangular:[br] [/size]

[size=200]There is a correlation and connection between complex - polar - rectangular[br][br]As you may notice, the complex number: -2 + 0i is plotted in the polar coordinate. [br][br]On the rectangular plane, by definition a + bi can be rewritten as (a, b).[br][br]Therefore, -2 + 0i complex = (-2, 0) rectangular.[br][br][/size]

[size=200]This imaginary "i" chart helps students quickly identify correlating complex numbers for reference. [br][br][br]i[sup]0[/sup]= 1 [br]i[sup]1[/sup]= i[br]i[sup]2[/sup]= -1 [br]i[sup]3[/sup]= -i[br]i[sup]4[/sup]= 1[br][br][br]This pattern may help comprehend the complex "i" quickly.[br][br]The most useful property is i[sup]2[/sup] =-1 and i = [math]\surd[/math]-1 [br][/size]