My version was: the course boils down to just two things: anything that is linear behaves like matrix multiplication; eigenvectors are the ones that don’t change direction.
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Replying to @Meaningness @St_Rev and
But here’s the discussion I mentioned:http://jadagul.tumblr.com/post/159881292413/nostalgebraist-i-took-linear-algebra-as-an …
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Replying to @Meaningness @St_Rev and
“the entire subject is, like, four actual facts, each of which is repeated twenty times in slightly different language.” Be nice if they told us that up front…
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Replying to @Meaningness @St_Rev and
You say this, but if you actually try to write a book that, say, proves these facts or uses them in a useful way, you quickly find yourself piling up a heap of facts you forgot were needed to get to "the four." I know because I'm currently waist-deep in the pile.
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That’s interesting! I haven’t taught it, so My intuition may be way off
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