Talk:Derivative of Sine Function/Proof 5

This proof was inspired by a comment by "man on laptop" on https://math.stackexchange.com/questions/75130/how-to-prove-that-lim-limits-x-to0-frac-sin-xx-1?noredirect=1&lq=1 This is not a source allowed by the house style. I note it here to avoid plagiarism.


 * The reason it's not allowed is because such sites are ephemeral. If I can be convinced that links to pages on stackexchange are permanent, then we may consider adding it to one of our acceptable sources.


 * The alternative is that you just don't pinch stuff you find from there, or second-source it. --prime mover (talk) 18:21, 26 January 2019 (EST)


 * Okay, so I have created the template Stackexchange, which is a convenient way of generating a uniform citation link back to the pages on Stackexchange that source the material in question.


 * Now, I'm not familiar with Stackexchange myself, having found it a little socially inaccessible, so I am unfamiliar with accepted forms of the citation. I understand the required format is not hard-and-fast, as long as the information is there. I copied the format given directly from the "cite" field of the page under discussion.


 * So, please feel free to suggest alterations to the presentational style according to how you think it might be expected to look (or if you are familiar enough with MediaWiki software, make those amendments yourself), and go to it. --prime mover (talk) 19:24, 26 January 2019 (EST)