February 02, 2014
Now can look at points using Pythagorean theorem in two ways:
In rectangular world
Good for lots of things you have done since sixth grade
In polar world
Handy for circles and spirograph pictures
and....
Next: Looking at points as in the complex plane.
Step 1: Plotting complex numbers in rectangular plane grid called the complex plane
In the complex plane the point (2,3) refers to a complex number.
Its real part =2 and its imaginary part =3
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