Can the word "fruit" be used as an invariant plural as in "the fruit are" and "two fruit"?
Is using "fruits" as the plural of "fruit" acceptable?
PC Blue Screens and then instantly reboots. How do I stop this or find the error later? Most of something is plural or singular? I am writing a literature review. My question is which sentence is correct?   Most of the existing work focus on... Most of the existing work focuses on ... Most of the existing studies focus on ...   Thanks How does substituting Butter for Margarine/Shortening affect the Recipe I'm currently reading Evans' PDE book. In it he claims that for $f \in C^2_c(\mathbb{R}^n)$ $$\frac{f(x + he_i) - f(x)}{h} \to \frac{\partial}{\partial x_i}f(x)$$ and $$\frac{\frac{\partial}{\partial x_i}f(x + he_j) - \frac{\partial}{\partial x_i}f(x)}{h} \to \frac{\partial^2}{\partial x_jx_i}f(x)$$ uniformly as $h \to 0$.  My question is why must the convergence be uniform?  Thanks in advance. Geometric intuition for the tensor product of vector spaces A short story I read long ago about the phone system 'waking up' Have a web-part display only sub-folders? I am new to SharePoint 2013. I was curious how to put a WebPart for a Document Library on a page with SharePoint 2013, not 2010.   This WebPart would then show the content of a specific library folder and not start at the root of the folder. So say I have a library with multiple folders like "Marketing", "Finance" etc,   I want to be able to create a web part that would only show the contents within the “Marketing subfolder and all of it contents. Is this possible? I am trying to buy a laptop, and I have seen in many place that they show GDDR3 and sometimes  DDR3. What is the difference between them?  afaik DDR3 is a type of RAM used for system memory, while GDDR3 is a type of RAM used for graphics cards. So does "G" only stand for Graphics or does it have another particular meaning? Are unequal groups a problem for one-way ANOVA? I have data for three unequal groups: $N = 44$, $N = 354$ and $N = 347$. Is it possible to compare all three groups running a one-way ANOVA or is the first group too small? Error when using TikZ-Feynman package Today I downloaded and installed the new  package to draw Feynman diagrams. I included the packages   \usepackage{tikz}  \usepackage{tikz-feynman} \tikzfeynmanset{compat=1.0.0} \usetikzlibrary{shapes,arrows,positioning,automata,backgrounds,calc,er,patterns}   into my preamble (changed them already many times).  However, already a simple sample code like  \begin{tikzpicture} \begin{feynman} \vertex (a) {\(\mu^{-}\)}; \vertex [right=of a] (b); \vertex [above right=of b] (f1) {\(\nu_{\mu}\)}; \vertex [below right=of b] (c); \vertex [above right=of c] (f2) {\(\overline \nu_{e}\)}; \vertex [below right=of c] (f3) {\(e^{-}\)}; \diagram* { (a) -- [fermion] (b) -- [fermion] (f1), (b) -- [boson, edge label'=\(W^{-}\)] (c), (c) -- [anti fermion] (f2), (c) -- [fermion] (f3), }; \end{feynman} \end{tikzpicture}   directly gives the error:     Package pgfkeys Error: I do not know the key '/graph drawing/node distance'.   Can you please help me? Thanks in advance! Open subscheme of an irreducible component remains open? "Not being good at swimming, he didn't like it." Could we omit the word "being" here? Not being good at swimming, he didn't like it.   Could we omit the word "being" here?     Not good at swimming, he didn't like it.   Which one is grammatically correct? Is the convex hull of closed set in $\mathbb R^{n}$ is closed? Is convex hull of closed set in $\mathbb R^{n}$ closed? Bash built-ins with no manual entries How can one differentiate between "who" and "whom"? Many times, I've been asked the difference between "who" and "whom". I myself know the difference, but it is hard to explain to others. What is the easiest way to explain it to those with a basic understanding of English? A mnemonic (if possible) would help. Use the result of FPeval to color a table cell I am trying to give a table cell a grayscale color value based on it's numeric value. So far I have the following code  \documentclass{article} \usepackage{fp,xcolor,colortbl} \FPeval{\resb}{0.5}  \newcommand{\he}[1]{%     \FPeval{\resa}{2 * #1}%     \cellcolor[gray]{\resa}%     #1  }  \begin{document} \begin{tabular}{| c | c | c |}     \hline     \he{0.1} &amp; \he{0.2} &amp; \he{0.3} \\     \hline     \he{0.5} &amp; \he{0.8} &amp; \he{1.0} \\     \hline \end{tabular} \end{document}   The tables contain all floating point numbers. The error I get is :   Undefined control sequence. &lt;argument&gt; \resa    Is there a way I can use the result from the FPeval to color the cell? How does the Higgs mechanism work? I'm not a particle physicist, but I did manage to get through the Feynman lectures without getting too lost. Is there a way to explain how the Higgs field works, in a way that people like me might have a hope of understanding? How deterministic is floating point inaccuracy? I overseasoned my food, what can I do to remove the strong smell? Where does the name of these two famous types of sequences come from?  The article  of Wikipedia says that the geometric sequence is called like this because every term is the geometric mean of its two adjacent terms. Though it is true, it only reduces the question to: why is the geometric mean geometric (in opposition to the arithmetic mean).   Continuing my investigation on , I was told that a square with the same area than a rectangle with sides $a$ and $b$ has their geometric mean $\sqrt{ab}$ for side. That's again totally true, but a square with same perimeter than this rectangle of sides $a$ and $b$ has their arithmetic mean $\frac{a+b}{2}$ for side!  Thus, my question: Who coined these names? And why? Why is the geometric mean more geometric than the arithmetic mean?