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## Introducing LaTeX Math Typesetting

Guide to using the amsmath package:

http://www.cds.caltech.edu/~dunbar/docs/amsldoc.pdf

- Warren
 Recognitions: Gold Member Science Advisor Staff Emeritus What are all the spacers available to us? (like '~' and '\,') (and remember, I'm a LaTeX newbie, so mentioning what they're supposed to do is nice [:)] probably should go in the .pdf too)
 Recognitions: Gold Member Science Advisor Staff Emeritus Is there a smaller triangle that goes well here? What's the command for the floor and ceiling functions? Am I spelling the command for omicron wrong, or is omicron identical to 'o' so there isn't a command? $$\Delta x \triangle x$$ $\Delta x \triangle x$
 $$ab$$ $$a b$$ $$a\! b$$ $$a\, b$$ $$a\: b$$ $$a\; b$$

 Originally posted by Hurkyl Is there a smaller triangle that goes well here?
What do you want a triangle for?

 What's the command for the floor and ceiling functions?
$$\lfloor x \rfloor, \lceil y \rceil$$

 Am I spelling the command for omicron wrong, or is omicron identical to 'o' so there isn't a command?
The latter.
 '~' isn't really intended to add space in LaTeX; it's just like a regular space, except it's non-breaking (LaTeX won't try to insert a line break there).
 Recognitions: Gold Member Science Advisor Staff Emeritus $$f(x + \Delta x) = f(x) + f'(x) \Delta x + \varepsilon(\Delta x) \Delta x$$ The triangle seems a little on the big side to me.

 The triangle seems a little on the big side to me.
The triangle, or the letter Delta? If you mean the triangle, what are you trying to use it for?
 Recognitions: Gold Member Science Advisor Staff Emeritus Yes, it's the letter delta; I want to use it as one notates a differential or a difference, as in $\Delta x$ (my previous post is the theorem I wanted to state in a post; I copped out with $\delta x$ but I prefer the capital delta). When I write it by hand, I usually write the delta as the same height as a lower case letter... but now that I've checked some reference material, it seems that the full-size is the norm; ah well. I'd still like to know if I can make a half sized one should I want to in a post. [:)]
 It may not be too easy to get a small Delta of the correct size... $$\Delta x$$ $$\mbox{\small \displaystyle\Delta} x$$
 I have trouble opening http://www.physicsforums.com/misc/howtolatex.pdf
 Recognitions: Gold Member Science Advisor Staff Emeritus $\frac{\mathbb{N}}{\mathbb{N}}=\mathbb{N}$why am I over here? For some reason this image contains a lot of whitespace on my browser; the text is all on the right side of the message!
 This LaTeX seems to be missing the Greek letter "omicron."

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 Recognitions: Gold Member Science Advisor Staff Emeritus Hurkyl, I'm not exactly sure why that's happening. Apprently it's the \frac command that's doing it, coupled with the way I crop inline images. (Inline images are cropped differently from display-mode images, so that they appear at the right location vertically). I'll have to do some more thorough experimenting next time I'm on the site. In the meantime, don't inline \frac I guess. [t)] You can also inline it manual-style like this: $$\mbox{ \Large  \frac{\mathbb{N}}{\mathbb{N}}=\mathbb{N} }$$. Doing so renders the image as inline-mode, but crops the image as display-mode (meaning it may not appear at the right position vertically). It works, but that's a bit ridiculous. I'll look into it next time I get the chance. - Warren
 Recognitions: Gold Member Science Advisor Staff Emeritus One should probably use $\mathbb{N}/\mathbb{N}$ style fractions in inline text anyways, but a bug is still a bug!