Extrema and first variation
- From: "Zinc Potterman" <zincnews@xxxxxxxxxxxxxxxxx (delete 123's to reply)>
- Date: Fri, 30 Sep 2005 19:58:43 +0000 (UTC)
My physics book states:
An extremum can be characterised as the place where the first variation of
the function vanishes.
"followed by this equation"
delta f = sum from a=1 to n [(partial delta f / partial delta x superscript
a) delta x superscript a] = 0
Sorry about the text.
What does this mean?
I'm not sure why a summation has appeared in here
Zinc
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