PHP Email Using SMTP going to spam
What's the best way to generate a tag cloud from an array using h1 through h6 for sizing?
How can I apply Newton's sums to solve this problem? What's the term for design ala "object.method1().method2().method3()"? What's the term for this design?  object.method1().method2().method3()   ..when all methods return *this?  I found the term for this a while ago, but lost it meanwhile. I have no clue how to search for this on google :) Also if anyone can think of a better title for the question, feel free to change it.  Thanks  Update-Gishu: After reading about it, I feel that your question is misleading w.r.t. code snippet provided.. (Feel free to rollback)  Method Chaining  object.method1().method2().method3()   Fluent Interfaces  private void makeFluent(Customer customer) {         customer.newOrder()                 .with(6, "TAL")                 .with(5, "HPK").skippable()                 .with(3, "LGV")                 .priorityRush();     } We have been using Notes and Attachment to store files related to the record. I also read about Files in salesforce.   How are Files different from Attachment? Are there any limitations or benefits of using Files instead of Attachments?  Are Files available for all editions of Salesforce?  Is it possible to link Files to particular records so they are visible as related list? I tried looking into the content version  but cant seem to find anything to relate to a record Are there any drawbacks to using a wish spell to increase ability scores? If not then what would stop players from just using wish repeatedly and raising their ability scores to 30?  I'm just getting back into RPGs with D&amp;D 5e after not playing for years, and I seem to remember this being covered in the editions we played back then. Completely synchronise multiple Macs I've been trying to figure out how to change the chart from scientific notation to just show the 5 digit numbers. I've tried scale and scale ticks with not success.  How can I change the y-axis and data values to show the decimals not in scientific notation?  \begin{tikzpicture} \centering \begin{axis}[     width=300pt,     height=250pt,     axis lines*=left, % Don't display the top and right lines     ybar, % Display it as a bargraph     enlarge y limits={upper,value=0.2},     legend style={at={(0.5,-0.20)}, % -.20 y-axis     anchor=north,legend columns=-1},     ylabel={Densities},     nodes near coords,     every node near coord/.append style={ anchor=mid west, rotate=90},     symbolic x coords={Class1,Class3,Class5,Class7,Class9,Class11,Class13,Class15,Class17,Class19,Class21,Class23},     xtick=data,     xticklabel style={ inner sep=0pt, anchor=north east, rotate=70 },     nodes near coords align={vertical}, ] \addplot coordinates { (Class1,0.0968) (Class3,0.0887) (Class5,0.1452) (Class7,0.0726)     (Class9,0.0403) (Class11,0.0081) (Class13,0.0161) (Class15,0.0000)     (Class17,0.0161) (Class19,0.0081) (Class21,0.0000) (Class23,0.0081) }; \end{axis} \end{tikzpicture} What is the difference between apt and apt-get? I read about the new fancy progress bar which was added to apt 1.0 in  and how to enable it . However on running sudo apt-get update, I did not see the fancy progress bars. On reading the second link again, the solution explicitly requires you to use sudo apt update.  Hence my question is the difference between apt and apt-get. I thought they were one and the same. Winsock2's select() on fd 0 (stdin) fails Most textbooks introduce differentiable manifolds via . This has the advantage of being concrete, but the disadvantage that the local coordinates are usually completely irrelevant- the choice of atlas and chart is arbitrary, and rarely if ever seems to play any role in differential geometry/topology.  There is a much better definition of differentiable manifolds, which I don't know a good textbook reference for, via . This definition does not involve any strange arbitrary choices, and is coordinate free. Paragraph 3 in Wikipedia (which is the actual definition) states:   A differentiable manifold (of class $C_k$) consists of a pair $(M, \mathcal{O}_M)$ where $M$ is a topological space, and $\mathcal{O}_M$ is a sheaf of local $R$-algebras defined on $M$, such that the locally ringed space $(M,\mathcal{O}_M)$ is locally isomorphic to $(\mathbb{R}^n, \mathcal{O})$.   This confuses me, because I don't see why such a sheaf should be acyclic, or where conditions like "paracompact" or "complete metric space" or "second countable Hausdorff" are implicit. So either:   The wikipedia entry has a mistake (I would want to sanity-check this before editing the entry, because this is such a fundamental definition which thousands must have read). Somewhere in that definition, the condition that $M$ be paracompact is implicit.   Question: Should the definition above indeed require that $M$ be second-countable Hausdorff or paracompact or whatever? Or is it somehow implicit somewhere, and if so, where?    Also, is this definition given carefully in any textbook?  Update: I have editted the Wikipedia article to require that $M$ be second-countable Hausdorff. But I'm still wondering if there is a textbook covering this stuff, and whether requiring the sheaf to be acyclic might have worked instead as an alternative. Show that function $f$ has a continuous extension to $[a,b]$ iff $f$ is uniformly continuous on $(a,b)$ Let $E \subset F \subset X$ and $f:E\rightarrow Y$. We say that the function $g:F\rightarrow Y$ is an extension of $f$ if $g(x) = f(x)$ for all $x \in E$.   Let $f: (a, b) \rightarrow \mathbb{R}$. Show that $f$ has a continuous extension to $[a, b]$ if and only if $f$ is uniformly continuous on $(a, b)$.   $(X,d)$ is a metric space.  Hint: To prove $\Leftarrow$ start by showing that $f$ maps Cauchy sequences to Cauchy sequences. Then how should you define $g(a)$ and $g(b)$?  The $\Rightarrow$ part of the proof was quite simple, but even with the hint, the other way seems a bit difficult. Doesn't the first part of the "hint" follow from the way we defined $f$? If so, how do I prove this? Help/Hints appreciated! I have two identical folders, with same structure and contents like this:  folder_1   hello.txt   subfolder     byebye.txt  folder_2   hello.txt   subfolder     byebye.txt   if I compress them as tar.xz formats I get two different archives with two different file sizes (just a few bytes, but they're not identical).  $ cd folder_1 &amp;&amp; tar -Jcf archive.tar.xz * $ cd folder_2 &amp;&amp; tar -Jcf archive.tar.xz *   I get:  folder_1/archive.tar.xz != folder_2/archive.tar.xz   and of course if I md5sum or sha1sum them I'll get two different hashes  And that's my problem... I need to check if a provided archive is identical to the one I have in my storage. I cannot use hashing nor just check file sizes.  Using zip instead of tar.xz works as zip always produces identical achives from identical files. Why is this happening? Is there a way to prevent it? Open maps which are not continuous What is an example of an open map $(0,1) \to \mathbb{R}$ which is not continuous? Is it even possible for one to exist? What about in higher dimensions? The simplest example I've been able to think of is the map $e^{1/z}$ from $\mathbb{C}$ to $\mathbb{C}$ (filled in to be $0$ at $0$). There must be a simpler example, using the usual Euclidean topology, right? Is it valid to have more than one question mark in a URL? Points in Polygon missing from QGIS 2.16.x? Looking to do a basic Hex analyis with some random points within the Gulf of Mexico.      I created a hex grid from MMQGIS  Under my Vector tool - Analysis tools, I dont have Points in Polygon.  Is it missing on 2.16.3 (2.16.x)? What are the differences between an Ubuntu Long Term Support release (LTS) and a normal release? Why didn't Skynet kill Kyle Reese? Why didn't the Seons change? In the book Elantris, the Reod was caused by a giant earthquake opening a chasm which changed the shape of all the Aons. The Seons, which are basically living Aons, were presumably unchanged, since nobody noticed the change, which should have been obvious on the simpler Aons. Is it possible to set the default size of the Empty Object? The problem is since I switched my blender scale to metric, the Empty's default size is kinda large for most times I need it. If $a,b,c$ are positive real numbers, not all equal, prove that  $$\dfrac{bc}{b+c}+\dfrac{ca}{c+a}+\dfrac{ab}{a+b}&lt;\dfrac{a+b+c}{2}$$  Progress: $\frac{bc}{b+c}-\frac{b+c}{2}=$ I have recently installed a custom ROM and cannot find the Play Store. It seems like all apps that belong to Google are missing.  How can I install the Google Apps Package (Play Store, ...) on my Android device?