Math & Science ⇒ AMSmath is not working, but why ???

[12321]

Hey guys,

I'm pretty new to LaTeX, so I can not figure out why AMSmath is not working.
I can not use e.g. \mathscr{N}. In the PDF is just a normal N.

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\setlength{\mathindent}{0mm}

and

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\makeatletter
\setlength{\@mathmargin}{0mm}
\makeatother

don't work neither.

My "settings":

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\documentclass[a4paper,12pt,titlepage,fleqn]{article}
    \usepackage{natbib}
    \usepackage[ngerman]{babel}
    \usepackage[latin1]{inputenc}
    \usepackage{calc}
    \usepackage[T1]{fontenc}


    \usepackage{setspace}
        \onehalfspacing
    \setlength{\parskip}{1.5ex}
    \setlength{\parindent}{0cm}
    \renewcommand{\thefootnote}{\arabic{footnote}\hspace{2.0mm}}
    \setlength{\footnotesep}{2.5ex}
    \setlength{\mathindent}{0mm}


    \setcounter{secnumdepth}{3}
    \setcounter{tocdepth}{3}
    \usepackage[dvips]{graphicx}
    \graphicspath{{./pics/}}
    \DeclareGraphicsExtensions{.eps}


    \usepackage{color,colortbl}
    \definecolor{Hellgrau}{gray}{0.95}
    \definecolor{Grau}{gray}{0.7}
    \definecolor{Dunkelgrau}{gray}{0.5}
    \definecolor{MarineBlau}{rgb}{0, 0, 0.55}
    \definecolor{HellBlau}{rgb}{0.59,0.74,1}


    \usepackage{longtable}
    \usepackage{tabularx}
        \newcolumntype{Z}{>{\centering\arraybackslash}X}
        \newcolumntype{R}{>{\raggedleft\arraybackslash}X}



    %\usepackage{algorithmic}
    %\usepackage{exscale}
    \usepackage{amsmath}
    \usepackage{amsthm}
    \usepackage{amssymb}    
    \usepackage{mathtools}

I thought maybe I could be because of these both packages
\usepackage{algorithmic}
\usepackage{exscale}
but I didn't changed anything.

Thanks for your help!

[gmedina]

Hi,

amsmath is working as expected; you are not doing things properly. Changes to \mathindent will be noticed if the fleqn package option is used (causing all the displayed equations to be placed at a fixed indent (given by \mathindent) from the left margin, rather than centered); i.e., if you load amsmath like this:

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\usepackage[fleqn]{amsmath}

To use \mathscr you need to load some other package:

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\usepackage{mathrsfs}

for example.

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\documentclass{article}
\usepackage[fleqn]{amsmath}
\usepackage{mathrsfs}

\setlength\mathindent{0pt}

\begin{document}

\[ \mathscr{N} \]

\end{document}

[12321]

ahhh
wonderful
looks perfect! Big thanks gmedina

[localghost]

Now that the problem is solved, please mark the topic accordingly as described in Section 3 of the Board Rules.


Best regards and welcome to the board
Thorsten

[12321]

@localghost

Thank you for welcoming me. It's a great community here, I found already a lot of answers here. Hopefully I'll be learning quick, that I can contribute too.

I actually really read the board rules. They were pretty long.
Sorry I forgot about that point to mark the problem solved.