Cassio's profile - activity

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2018-08-23 13:27:23 +0200	received badge	● Famous Question (source)
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2014-02-12 12:07:25 +0200	commented answer	Limit of 1/x = infinty? Thanks. I get it now, although returning infinity when asking for the two-sided limit seems a bit misleading to me. But it's not just sage doing it...
2014-02-12 12:06:08 +0200	received badge	● Scholar (source)
2014-02-12 12:06:08 +0200	marked best answer	Limit of 1/x = infinty? Infinity is not signed There also +Infinity and -Infinity . example : `sage: limit(1/x, x=0) Infinity sage: limit(1/x, x=0, dir='+') +Infinity sage: limit(1/x, x=0, dir='-') -Infinity` Look at here : http://www.sagemath.org/doc/reference/calculus/sage/calculus/calculus.html
2014-02-12 12:06:06 +0200	received badge	● Supporter (source)
2014-02-12 11:04:50 +0200	asked a question	Limit of 1/x = infinty? Hi, I don't get why `limit(1/x, x = 0)` returns `infinity`. Shouldn't it be undefined? Interestingly, Mathematica also returns `infinity`, but on Wolfram Alpha it says two-sided limit does not exist.
2013-11-03 20:34:50 +0200	asked a question	Is there a command to retrieve the last answer? Is there a way to retrieve the last computed answer? Like Mathematica's % command? Thanks.