# natema

Age: 25

Phd student in Computer Science at Sapienza Università di Roma.

 Mar 24 answered Inference on random graph, with an application to mobile sensors Mar 23 comment How to preserve indent after pressing Esc in VimThanks, vote amended. Mar 21 comment How to preserve indent after pressing Esc in VimI downvoted this answer by mistake 10 hours ago (my intention was to upvote it), and now I'm unable to switch my vote until the answer is edited. :( Mar 21 awarded Critic Mar 9 awarded Editor Mar 2 awarded Popular Question Feb 28 awarded Investor Feb 28 comment `. shortcut doesn't expand to \cdotIdem: it doesn't work for me either. Feb 23 awarded Yearling Feb 23 awarded Yearling Jul 17 awarded Notable Question Jul 14 awarded Supporter Jul 13 comment Is there any way I can define a variable in LaTeX?For huge content, it is worth to mention \savebox (en.wikibooks.org/wiki/LaTeX/Boxes#savebox). Jul 11 comment What is meant by "constant" in the optional stopping theorem?Is the optional stopping theorem still true with a definition of stopping time that allows it to be infinite? I think no: let the random walk stop moving as it reaches $m$ or $-m$, but define the stopping time to be the time it reaches $m$; this stopping time is infinite but if we could use part (c) we got a contradiction. Jul 10 comment What is meant by "constant" in the optional stopping theorem?Thank you! I did not encounter that definition of stopping time before (I'm in the "some cases" of the Wikipedia definition en.wikipedia.org/wiki/Stopping_time#Definition). Jul 10 accepted What is meant by "constant" in the optional stopping theorem? Jul 10 asked What is meant by "constant" in the optional stopping theorem? Jun 27 awarded Investor May 27 awarded Yearling May 27 comment LaTeX: Numbering only last line of multi-line equation in \alignConversely, if there are many lines, one could just add \tag as shown in tex.stackexchange.com/questions/42726/….