Homography: Difference between revisions

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en>D.Lazard
→‎Projective frame and coordinates: "onto" -> "to" for mapping an element
en>Wavelength
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{{Orphan|date=October 2012}}
Jayson Berryhill is how I'm called and my spouse doesn't like it at all. Office supervising is my profession. What me and my family members adore is performing ballet but I've been using on new things recently. Alaska is where he's always been residing.<br><br>Here is my website: [http://appin.co.kr/board_Zqtv22/688025 psychic readings online]
 
In [[mathematics]], the '''characteristic sequence''' of a given [[sequence]] ''s'' is a sequence of 1s and 0s which tells which elements of ''s'' are in some [[Set (mathematics)|set]].
 
Given two sets <math>A \subseteq B</math> and a sequence s = <math>\langle s_n : n \in \mathbb{N}\rangle</math> of elements of <math>B</math>, the characteristic sequence of <math>s</math> is the sequence <math>\langle c_n : n \in \mathbb{N}\rangle</math> defined so that
<math>c_n = 1</math> if and only if <math>s_n \in A</math>:
:<math>
c_n =
\begin{cases}
0 &  s_n \not \in A, \\
1 &  s_n \in A.
\end{cases}
</math>
 
[[Category:Mathematical logic]]
[[Category:Binary sequences]]
 
 
{{mathlogic-stub}}

Revision as of 23:56, 20 February 2014

Jayson Berryhill is how I'm called and my spouse doesn't like it at all. Office supervising is my profession. What me and my family members adore is performing ballet but I've been using on new things recently. Alaska is where he's always been residing.

Here is my website: psychic readings online

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