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Questions tagged [plot]

{plot} is for questions concerned with plotting data or functions using TeX. For questions specific to the pgfplots package, use the {pgfplots} tag.

6
votes
1answer
965 views

tikz: plot stepped gauss

I need to plot a stepped gauss curve as shown below. Yet I want to do this dynamically (in text) so I can alter it later. I know how to plot a smooth gauss but I really need the stepped one. Also a ...
10
votes
1answer
1k views

TikZ: Fill (closed) parametric plot of catacaustic

Is there a trick to fill the parametric plot of a catacaustic which looks closed but isn’t closed in TiKZ meaning. The Problem is the egdge which looks closed but isn’t it … I guess I can experiment ...
4
votes
2answers
653 views

PGFplot producing “noise” (incorrect graph)

Update: This has problems if the samples are one of these: {19,21,23,28,30,31,32,34,36,38,39}, so I think something else is going on. I can get this example to work fine if I reduce the number of ...
9
votes
1answer
813 views

Using pgfplots with a0poster

I want to use tikz/pgf to plot some graphs in a poster done with a0poster. That is the code: \begin{tikzpicture} \begin{axis}[xlabel=lambda, ylabel=int] \addplot[blue] table [mark=none, col sep=...
7
votes
5answers
3k views

Tangents to a circle from a point outside of it (tikz)

I'm trying to plot in TikZ the two tangents to a fixed circle passing through a given point. In some details, given an arbitrary circle centered at C with with radius r, and a point P outside of the ...
15
votes
1answer
16k views

Plot a function of a binary logarithm with TikZ

How do I plot a function of a binary logarithm with TikZ? Say that I want to plot f(x) = log_2 x.
17
votes
1answer
4k views

Plotting an implicit function using pgfplots

What is the correct way to plot an implicit function using pgfplots? Consider the following example: \documentclass{standalone} \usepackage{pgfplots} \pgfplotsset{compat=newest} \begin{document} \...
2
votes
1answer
1k views

Two color line in gnuplot

Is there any way to plot a line graph where each series is plotted with two alternating colors? For example, say I was plotting the population of bees over time and I wanted the line to alternate ...