# Plotting elements of a sequence on number line

i plotted the number line which includes (0,1) interval

\begin{tikzpicture}
\begin{axis}[
axis x line=middle,
axis y line=none,
height=50pt,
width=\axisdefaultwidth,
xmin=0,
xmax=1, ]
(1,0) (0.5,0) (0.3,0) (0.25,0) (0.625,0)
};
\end{axis}
\end{tikzpicture}


So far i putted 5 dots on line but i want to put all elements of the sequence

$\{ a_n \}=\frac{1}{n}$ which has infinitely many elements.

secondly i used xtick={0,0.125,0.250.5,1} and it was not give any good result, it corrupt the number line :)

• Your sequence is a normal function, so you could plot the function 1/x. – TeXnician Mar 31 '17 at 15:38
• it is not a function it is squence so, the elements of a squence must represented by points @TeXnician – Alper Erdem Mar 31 '17 at 15:41
• as n is natural number which starts from 1,2,3,... graph must include the points that (1, 1\2, 1\3, 1\4, 1\5, .... ) @TeXnician – Alper Erdem Mar 31 '17 at 15:49
• A sequence is a function whose domain is a subset of the integers: see here for example. – DJP Mar 31 '17 at 16:18

\documentclass[border=2mm]{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
ymin = 0,
ymax = 1,
xmin = 0,
xmax = 100,
axis x line=center,
axis y line=left]
\end{axis}
\end{tikzpicture}
\end{document}

• Excactly what I suggested and the OP rejected ;) – TeXnician Mar 31 '17 at 15:51
• thanks , it was excatly what i want to do @TeXnician :P but i need the projection of the points onto y axis so it can be represented with (0,1) line which covered by number line – Alper Erdem Mar 31 '17 at 15:54
• @TeXnician Maybe the misunderstanding was about "plotting a normal function". If one identifies normal or plotting with continuous, then this is not what the OP wanted. – gernot Mar 31 '17 at 16:07

Is this what you want then, or am I just confused as usual?

\documentclass[border=5mm]{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
axis x line=middle,
axis y line=none,
height=50pt,
width=\axisdefaultwidth,
xmin=0,
xmax=1, ]