General ⇒ writing commands in tex

[meliahabib]

hi all.
i am writing a tex about latex,so i will write \usepackage{graphics} and other LATEX commands inside the tex as an explanation and not the really use of the command.but i have this error: Error: ! LaTeX Error: Can be used only in preamble.
other question :how can i write è in latex.
so,how can i write them without problem.if someone can help me please.
thanks.

[localghost]

[...] i am writing a tex about latex,so i will write \usepackage{graphics} and other LATEX commands inside the tex as an explanation and not the really use of the command.but i have this error: Error: ! LaTeX Error: Can be used only in preamble. [...]

Depending on what and how you want to write, you can use either listings or showexpl. For simple code in the text you may use the verbatim environment or the short \verb command.

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\begin{verbatim}
  \usepackage{graphicx}
\end{verbatim}

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\verb|\usepackage{graphicx}|

[...] other question :how can i write è in latex. [...]

Accents for characters have a special syntax.

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\`e

But writing "è" in the source directly should be no problem when using inputenc. Refer to its documentation.

[...] so,how can i write them without problem.if someone can help me please. [...]

Some basic LaTeX documentation is given with lshort. In our LaTeX Resources for Beginners you can find other useful documents.


Best regards
Thorsten¹

[meliahabib]

thank you very much.
it was a good solution.
but ,i have another question please:
how can i suppress spaces between paragraphs and how can i create a special number of spaces between them.
thanks.

[localghost]

[...] how can i suppress spaces between paragraphs and how can i create a special number of spaces between them. [...]

That depends on the settings in your preamble and especially the used document class. Please provide a minimal working example (MWE) that shows the problem.