Math & Science ⇒ Maths and Spacing in Equations

[jono90one]

I've been muddling around this for a while following what is said on here:
http://www.andy-roberts.net/writing/latex/mathematics_2

However i keep getting this result:

capture01.png (4.86 KiB) Viewed 2872 times

after typing:

Code: Select all

\begin{equation}
  f(x) = -a{x}^{2} \pm b{x} + c \mathrm{ } \Vert \mathrm{ x, a, b, c } \in\mathbb{R}
\end{equation}

I want it to look like this, where there is more space:

capture02.png (1.42 KiB) Viewed 2872 times

I thought about adding empty text boxes to free up space, but that didn't work as shown above.

Thanks for any help.

[localghost]

I have no problem with this. Note the backslashes with a following blank space.

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\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage{mathtools}   % loads »amsmath«
\usepackage{amsfonts}

\begin{document}
  \begin{equation}
    f(x)=-ax^2\pm bx+c\ \Vert\ x,a,b,c\in\mathbb{R}
  \end{equation}
\end{document}

There are some more commands for spacing in math mode.


Thorsten

[Frits]

I think the answer is in the andy-roberts.net reference you gave. There it says:

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Command	Description
\,			small space
\:			medium space
\;			large space
\!			negative space

Use those commands to add spacing.