User talk:Widener

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Could I suggest that instead of writing things like
 * $$ 1 + 1 + 1 + ... \, $$

you could instead write
 * $$ 1 + 1 + 1 + \cdots \, $$

? Michael Hardy (talk) 22:47, 20 June 2011 (UTC)

telescoping sum
Concerning the sum

\begin{align} 0 & = 0 + 0 + 0 + 0 + \cdots \\ & = (1 - 1) + (1 - 1) + (1 - 1) + (1 - 1) + \cdots \\ & = 1 - 1 + 1 - 1 + 1 - 1 + 1 - 1 + \cdots \\ & = 1 + (-1 + 1) + (-1 + 1) + (-1 + 1) + \cdots \\ & = 1 + 0 + 0 + 0 + \cdots \\ & = 1, \end{align} $$ check out the article titled telescoping series. Michael Hardy (talk) 22:50, 20 June 2011 (UTC)

Hello
Hi! I'm curious if you are actively solving problems because you are enrolled in classes or rather because you are working independently studying. It's fine if you don't wish to answer: I'm just curious, and it is not important. Rschwieb (talk) 14:15, 15 April 2012 (UTC)
 * It is both, actually. It depends on which questions you are referring to. Widener (talk) 12:10, 16 April 2012 (UTC)
 * "Both" is a good answer, which I half expected at the outset While I'm no longer officially a student, I'm doing a lot of independent reading on physics, tensor algebra, and geometry. Rschwieb (talk) 13:57, 16 April 2012 (UTC)

Wikipedia Help Survey
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the wub (talk) 17:43, 14 June 2012 (UTC) (Delivered using Global message delivery)

Proposed deletion of File:Triangle with incenter.png


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