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Could I suggest that instead of writing things like

${\displaystyle 1+1+1+...\,}$

you could instead write

${\displaystyle 1+1+1+\cdots \,}$

? Michael Hardy (talk) 22:47, 20 June 2011 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2011-06-20T22:47:00.000Z","author":"Michael Hardy","type":"comment","level":1,"id":"c-Michael_Hardy-2011-06-20T22:47:00.000Z-dots","replies":[]}}-->

Concerning the sum

${\displaystyle {\begin{aligned}0&=0+0+0+0+\cdots \\&=(1-1)+(1-1)+(1-1)+(1-1)+\cdots \\&=1-1+1-1+1-1+1-1+\cdots \\&=1+(-1+1)+(-1+1)+(-1+1)+\cdots \\&=1+0+0+0+\cdots \\&=1,\end{aligned}}}$

check out the article titled telescoping series. Michael Hardy (talk) 22:50, 20 June 2011 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2011-06-20T22:50:00.000Z","author":"Michael Hardy","type":"comment","level":1,"id":"c-Michael_Hardy-2011-06-20T22:50:00.000Z-telescoping_sum","replies":[]}}-->

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)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2012-04-15T14:15:00.000Z","author":"Rschwieb","type":"comment","level":1,"id":"c-Rschwieb-2012-04-15T14:15:00.000Z-Hello","replies":["c-Widener-2012-04-16T12:10:00.000Z-Rschwieb-2012-04-15T14:15:00.000Z"]}}-->

It is both, actually. It depends on which questions you are referring to. Widener (talk) 12:10, 16 April 2012 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2012-04-16T12:10:00.000Z","author":"Widener","type":"comment","level":2,"id":"c-Widener-2012-04-16T12:10:00.000Z-Rschwieb-2012-04-15T14:15:00.000Z","replies":["c-Rschwieb-2012-04-16T13:57:00.000Z-Widener-2012-04-16T12:10:00.000Z"]}}-->

"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)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2012-04-16T13:57:00.000Z","author":"Rschwieb","type":"comment","level":3,"id":"c-Rschwieb-2012-04-16T13:57:00.000Z-Widener-2012-04-16T12:10:00.000Z","replies":[]}}-->

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