Graphics, Figures & Tables ⇒ pgfplots | Cosecant Function Graph

[sachinrajsharma]

Hi,

I am facing trouble in output of this code for a plot.

Code: Select all

\documentclass[10pt,a4paper]{article}
\usepackage{tikz}
\usepackage{pgfplots}

\begin{document}
  \begin{tikzpicture}
    \begin{axis}[
      xmin=-6,xmax=6,
      ymin=-2,ymax=2,
      axis x line=middle,
      axis y line=middle,
      axis line style=<->,
      xlabel={$x$},
      ylabel={$y$},
    ]
      \addplot[no marks,blue,<->] expression[samples=100]{cosec(deg(x} node[pos=3.0,anchor=south east]{$y=\cosec(x)$}; 
    \end{axis}
  \end{tikzpicture}
\end{document}

I get an error.

Code: Select all

! Undefined control sequence.

Please help in rectifying this issue.


Regards,
Sachin Sharma

[localghost]

There are two mistakes in your code.

1. Two parentheses are missing in the actual plot command.
2. The \cosec command does not exist. But \csc does.

The corrected example.

Code: Select all

\documentclass[11pt]{standalone}
\usepackage{pgfplots}

\begin{document}
  \begin{tikzpicture}
    \begin{axis}[
      xmin=-6,
      xmax=6,
      xlabel={$x$},
      ymin=-2,
      ymax=2,
      ylabel={$y$},
      axis x line=middle,
      axis y line=middle,
      axis line style=<->
    ]
      \addplot[no marks,blue,<->] expression[samples=100]{cosec(deg(x))};
      \addlegendentry{$y=\csc(x)$}; 
    \end{axis}
  \end{tikzpicture}
\end{document}

Thorsten

[sachinrajsharma]

Thanks a lot....its great...

Sachin