Not sure if this is a style problem or a grammar problem    64 m 59.8 km 210 ft  37.2 mi   Are spaces necessary between digits and measurement unit?
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I remember reading somewhere that if a unit is abbreviated as one character, there must not be a space between the number and the unit (e.g., 5m, 26K). If the unit is abbreviated as two or more Characters, there must be a space between the number and the unit (e.g., "10 km", "USD 5").   Can you please help me find the source again? Is this recommendation correct?
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Is there any alternative to this construction?      It was too stupid a question.    I mean, can we somehow put the 'a' in a different position and is it used in English (maybe informal) or the version I've given is the only possible?  Also, I feel as if something's wrong in my previous sentence, it would be very nice if anybody corrected it.
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For formal articles, should a displayed equation be followed by a punctuation to conform to the language grammar ?  For example:  The most well-known physics formula is      \[E=mc^2.\] %should I put a period here?  And if you expand      \[(x+y)^2,\] % should I put a comma here?   you will ...
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Example:     Paul and Jake discuss the Frame Timing API in this 5-min video: …   Which character (if any) should be put between the number and the word “min”?
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This is what I have come up with so far, but I am rather lost at lines 3-4...  $$\begin{align} (a,b)\in A\times (B\setminus C)\iff&amp; a\in A \land b\in (B\setminus C)\\ \iff&amp; a\in A \land (b\in B \land \lnot(b\in C))\\ \iff&amp; (a\in A \land b\in B) \land (a\in A \land b\notin C)\\ \iff&amp; (a\in A \land b\in B)\setminus (a\in A \land b\in C)\\ \iff&amp; (a,b)\in (A\times B)\setminus ((a,b)\in A\times C)\\ \iff&amp; (a,b)\in (A\times B)\setminus (A\times C) \end{align}$$
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When I write something like this:     I am a man that is doing these things.   Is it correct to shorten it like this?     I am a man doing these things.   And does it require commas?
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There is a question in our grammar book that goes like this:  Her husband, a plumber's assistant, earns only 300 dollars a month, which makes it very difficult for her to feed and clothe her children properly, ______________ send them to school. a. much more b. still more c. much less d. even less  The book says that the answer is C. How do i explain it in the clearest way possible to my student? She is an intermediate level.
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If you comment something on Stack Overflow, you need to enter at least 15 characters, and you can't post a comment which just contain spaces.  But if you type in zero-width spaces it will work. A zero-width space can be translated with &amp;#8203; in HTML.  For better understanding, I have added a zero-width space comment to my question.
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I had a Grammar homework and I was asked to fill in the gap of the following sentence :   My father ... subscribe to the Newsweek.   I had been given four options and only one of them fits in with the sentence, they are as follows :   A- Said to me  B- Suggested that I   C- Suggests me to   D- Encouraged me  I had chosen the answer "C" but I discovered later that the teacher considered it as incorrect, and that "B" is the appropriate answer, which made me so confused. Could you please explain to me why ?
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Should I typeset numbers in a running text with math mode?  I read $4795$ pages.  I read 4705 pages.   I tried it out with the default font, and there does seem to be tiny differences in kerning. That could just be my imagination, though.
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Possible Duplicate:          I'm working on a website that displays distance to various locations to the nearest 1/10 mile. One of the developers (a non-native speaker) asked me an interesting question: If the distance is 1.0 mile(s), is that singular or plural? Clearly, anything other that 1.0 is plural, but is it:     1.0 miles away   or     1.0 mile away   The first option sounds more correct to my ear, but the voice of my elementary school language arts tells me that the latter option is correct.  Edit: Added the word 'away' to the example. It doesn't change the question, but might provide clarity for the answer. Also, regarding numbers between 0 and 1, after more thought, I'm not sure that the answer is as clear as I originally thought. See .
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I understand that something like \SI{5}{\meter\per\second} defines a certain space between the number (5) and units (m/s). What should I use if instead of a numerical quantity I want a variable: R m/s? \SI{R}{\meter\per\second} fails because it expect a number in first parameter, and R \si{\meter\per\second} or $R$ \si{\meter\per\second} show different space.  Which is the correct use?  \documentclass{standalone} \usepackage{siunitx} \sisetup{per-mode=symbol} \begin{document} \begin{tabular}{r} \SI{5}{\meter\per\second}\\ $R$ \si{\meter\per\second}\\ R \si{\meter\per\second}\\ \end{tabular} \end{document}
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In my profile under the  there is a small visual bug: a space is missing between the word "on" and the subsequent word.   See the following image:
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I'm writing the following sentence:     Women lead uptake at XX%.   But a friend is saying that it should be written:     Women lead uptake with XX%.   Which one is correct?
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I'm thinking that the singular verbs "is" and "has" are correct below because we're referring to a singular lump of precipitation. Although the subject "inches" is plural, I think the singular verbs are correct below. We wouldn't say, "Fifty dollars are a lot of money." I think this is basically the same concept.  Good for the singular verbs below?  One to 3 inches of snow "is" expected. (Not: ... are expected.)  Ten inches of snow "has" fallen. (Not: ... have fallen.)
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Here is my problem that I have to solve:  An agent will send a secret code made up of 12 different symbols across a secure wire. In addition to the 12 symbols, the agent will also send a total of 45 blank spaces between the symbols, with at least three spaces between each pair of consecutive symbols. How many ways are there for the agent to send such a message?  Just the wording of this problem has me thoroughly confused and lost.  Now, I figure that since the agent will put at least 3 spaces between a pair of consecutive symbols, then at least 36 spaces would be used. But that's all I have figured out, if I even did that correctly. Could someone help me solve this problem?  Thank you for any help.
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I am trying to find a small enough microcontroller for a project, but I am not familiar with the notation used to denote the sizes in this image:  What does that mean when it says 12,20/11,80 SQ and 7,50 TYP.  The image is from .  OR is this not where I find the physical dimensions? If these do not denote the physical dimensions of the part, then where in the datasheet is that written?