[K3CAL] khan academy

[Richard Terlisner]

for those taking the extra class (or anyone else),  you might want to take
a look at the khan academy web site regarding imaginary numbers.  they have
a whole series of short discussions on this topic.  it is in the
pre-calculas section, or just search for "imaginary numbers" on thier web
site.

www.khanacademy.org

you don't have to sign in, just click on "subjects" and look it up.

dick terlisner
n3vkw
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