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Apr 28, 2017 at 22:10 comment added Christian Remling This reminds me of something I read the other day (don't remember now where or who wrote it), where the author made the point that, contrary to what most mathematicians think, one cannot use arbitrary symbols for mathematical quantities. For example, while one may well call a function $f(x)$, denoting it by $x(f)$ instead immediately makes any further analysis impossible.
Apr 28, 2017 at 21:00 answer added Carlo Beenakker timeline score: 6
Apr 28, 2017 at 18:03 comment added Nicki I mean $g^{-3/2}$. $f$ stands for frequency, $H$ for the transform
Apr 28, 2017 at 17:54 comment added Willie Wong In the question, do you really mean $g^{-3/2}$ or $g^{-3}$?
Apr 28, 2017 at 17:52 comment added Willie Wong I think the OP is using $f$ for the variables many of us will normally call $\xi$, and $H$ the function many of us will write $\hat{h}$.
S Apr 28, 2017 at 17:38 history suggested the_fox CC BY-SA 3.0
improved formatting
Apr 28, 2017 at 17:31 review First posts
Apr 28, 2017 at 17:38
Apr 28, 2017 at 17:26 comment added Nik Weaver What is $f$? What is $H(f)$?
Apr 28, 2017 at 17:25 review Suggested edits
S Apr 28, 2017 at 17:38
Apr 28, 2017 at 17:24 comment added Sylvain JULIEN There may be a link with curvature, as the curvature of a $ C^{2} $ function $ f $ at $ x $ is expressed as $ f''(x).(1+f'(x)^2)^{-3/2} $, if I remember correctly.
Apr 28, 2017 at 17:19 history asked Nicki CC BY-SA 3.0