<P> Similarly, as with any non-zero real number: </P> <Dl> <Dd> i 0 = i 1 − 1 = i 1 i − 1 = i 1 1 i = i 1 i = i i = 1 (\ displaystyle i ^ (0) = i ^ (1 - 1) = i ^ (1) i ^ (- 1) = i ^ (1) (\ frac (1) (i)) = i (\ frac (1) (i)) = (\ frac (i) (i)) = 1 \,) </Dd> </Dl> <Dd> i 0 = i 1 − 1 = i 1 i − 1 = i 1 1 i = i 1 i = i i = 1 (\ displaystyle i ^ (0) = i ^ (1 - 1) = i ^ (1) i ^ (- 1) = i ^ (1) (\ frac (1) (i)) = i (\ frac (1) (i)) = (\ frac (i) (i)) = 1 \,) </Dd> <P> As a complex number, i is represented in rectangular form as 0 + i, having a unit imaginary component and no real component (i.e., the real component is zero). In polar form, i is represented as 1e (or just e), having an absolute value (or magnitude) of 1 and an argument (or angle) of / . In the complex plane (also known as the Cartesian plane), i is the point located one unit from the origin along the imaginary axis (which is at a right angle to the real axis). </P>

Why is square root of negative one i