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Topic: Frechét Derivative
Replies: 3   Last Post: Feb 11, 2013 5:16 AM

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Shmuel (Seymour J.) Metz

Posts: 3,343
Registered: 12/4/04
Re: Frechét Derivative
Posted: Feb 11, 2013 5:16 AM
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In <51168499$0$26775$4fafbaef@reader2.news.tin.it>, on 02/09/2013
at 06:17 PM, Kiuhnm <kiuhnm03.4t.yahoo.it> said:

>But then Ah is defined as (phi' o x)h. What does it mean? Is that
>(phi' o x) times h or (phi' o x) evaluated at h?


Only one of those has a meaning; (phi' o x) is a function, not a
scalar.

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