To your code.
- The package option is »centred«, not »center«. But you don't need to give it explicitly since it is default (see package manual).
- There is no »14pt« font size option for the used document class.
It seems that the command only accepts integer values. The example from the manual works fine.
Code: Select all
\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{coordsys}
\begin{document}
\begin{picture}(200,20)(-75,125)
\numbline{-75}{125}
\end{picture}
\end{document}
The package uses the old-fashioned
picture environment which has heavy limits. Packages like
pgf/tikZ or
PSTricks are much more sophisticated and therefore preferable.
And next time please use the code button when posting code.
Best regards and welcome to the board
Thorsten