Linked Questions

37
votes
3answers
7k views

How to draw tangent vectors and component vectors on a curve

I am searching for a way to have a figure drawn using LaTeX. I am aware of some packages TikZ and PSTricks that could accomplish this, and have been tinkering around with them recently but do not have ...
14
votes
4answers
2k views

Storing and re-using tikz coordinates for position and tangent vectors

The following code \documentclass[border=5pt]{standalone} \usepackage{tikz} \usepackage{pgfplots} \pgfplotsset{compat=1.11} \usetikzlibrary{arrows,backgrounds,patterns,shapes.geometric,calc,...
14
votes
1answer
1k views

Tangent on parabola

I really was working on this now for a long time. I need a tangent line on a parabola; here is my working example: \documentclass{minimal} \usepackage{tikz} \usetikzlibrary{arrows,calc,...
13
votes
3answers
6k views

Line tangent to a a curve (using plot or controls), starting at a point

I need to draw lines that are parallel to a curve starting at a point. The curve could be a curve drawn using 3 point as my example below did, but alternatively could be a curve drawn using the \...
11
votes
3answers
1k views

Using \foreach inside a draw command using TIKZ

I'm brand new to using \foreach but not coding in general. Following the code in answer number 40 of this example: How to draw tangent line of an arbitrary point on a path in TikZ How can I properly ...
11
votes
2answers
2k views

Typesetting a directed hypergraph in tikz

Similar to several other questions, I am trying to draw hypergraphs in tikz. I want to draw a directed hypergraph that looks something like those in this image from here: As opposed to other ...
10
votes
3answers
2k views

How do I make tangents to ellipses and lines parallel to these?

I have specified an ellipse and three points in the following way: \def\aa{2.5} \def\bb{2} \draw[thick] (0,0) ellipse [x radius=\aa,y radius=\bb]; \pgfmathsetmacro{\focus}{sqrt(\aa*\aa-\bb*\bb)} \...
9
votes
4answers
995 views

Tangent Lines Diagram Along Smooth Curve

I am trying to replicate a diagram and have a minimal example. I don't know how to add additional tangents between the specified points and preserve smoothness. \documentclass{article} \usepackage{...
9
votes
1answer
569 views

How to get a tangent coordinate system for the decoration of a path?

I want to draw some lines in a tangent coordinate system of the decoration of a path. Especially I want to draw a tangent segment at the end of the decoration with full controll, i.e. with having the ...
9
votes
1answer
1k views

How to draw tangent lines at control points of a path in TikZ?

I'm drawing smooth paths by using the \draw plot[smooth, tension=.7] coordinates ... command. Now I would like to draw tangents at the specified coordinates. I alreade tried Jake's answer, but I ...
8
votes
2answers
550 views

TikZ:How to consider a curve as an axis in a chart?

In the shown image bottom and left lines are considered as axis...:How to consider left curve as an axis in the chart? Psychrometric charts: http://en.wikipedia.org/wiki/File:PsychrometricChart....
8
votes
1answer
473 views

Automatically place right angle indicator on normal vector

I'm trying to draw a normal vector on a curve, and use the usual "dot in an arc" symbol to indicate that. Here is what I have so far, which looks alright, but needed manual adjustment of angles and ...
7
votes
2answers
1k views

Highlight and use arrows in an equation In a robust manner

I am trying to give a very simple analogy to what I am trying to do with LaTeX. I simply want to write two vectors, one below or next the other, and then, use nodes to link the last two elements of ...
7
votes
1answer
247 views

How to increase the accuracy of \psTangentLine?

I want to draw the tangent line as well as the normal line for an arbitrary curve as follows. \documentclass[pstricks,border=12pt]{standalone} \usepackage{pstricks-add} \begin{document} \begin{...
6
votes
5answers
766 views

Add a second label to a path in an automaton

Friends, consider the following code: \documentclass{article} \usepackage{tikz} \usetikzlibrary{automata} \usetikzlibrary{positioning} \begin{document} \begin{tikzpicture}[shorten >=1pt,,node ...
6
votes
2answers
948 views

tikz decorations.markings cause 'dimension too large'

I want to draw a bunch of smooth curves with arrow in the middle. So I have to combine decoration and smooth options. However, both options result in dimension too large error. If I remove smooth ...
6
votes
1answer
167 views

Extending a tangent line until x and y axes

I want to draw a graph that contains the following elements: A downward-sloping curve in the northeast quadrant of a 2d Cartesian plane; a line tangent to an arbitrary point on this curve; and the ...
5
votes
3answers
790 views

Tikz and Secant Line diagram

Hi I am looking for feedback to improve an existing program PLUS advice for a desired diagram in the same direction. Here is my minimal example: \documentclass{article} \usepackage{tikz} \...
5
votes
2answers
225 views

Plot that demonstrate Newton's method

I am preparing some slides for numerical method classes. I have difficulty identify the best package to draw plot like below I know there is software like Geogebra, but I prefer to do within latex. ...
5
votes
1answer
226 views

Draw tangent of an arbitrary curve at intersections

I have this picture: and I want to draw a tangent line at each of the marked intersections. I have found some answers (and examples in the TikZ manual) using the decorations.markings library. The ...
5
votes
1answer
464 views

How draw lines at certain angle on a function graph in TikZ

How can one draw orthogonal tick marks on a function? For instance in the following plot I would like to make orthogonal tick marks on the function y=x^2, say. \documentclass{article} \usepackage{...
5
votes
1answer
617 views

Scale a decoration in TikZ

Let's suppose a drawing that uses a simple decoration (for illustration, let's say a simple spring): \documentclass{article} \usepackage{tikz} \usetikzlibrary{calc,patterns,decorations.pathmorphing,...
4
votes
2answers
354 views

Drawing two vectors at a precise point of a curve

I have drawn the following figure. \documentclass[a4paper, 11pt]{book} \usepackage{tikz} \usetikzlibrary{calc} \usetikzlibrary{arrows} \usetikzlibrary{decorations.markings} \makeatletter \...
4
votes
1answer
147 views

Draw derivative tangent at specific Point in Tikz

following Code: \begin{figure}[htbp] \centering \begin{tikzpicture}[yscale=2,domain=0:16,samples=500] \draw[tkblue,thick] plot (\x,{1-exp(-0.45*\x)*(cos(deg(sqrt(1-0.0001)*\x))+0.3/(...
4
votes
3answers
90 views

“Straight” (tangent) connections to both ends of Bézier curve

I would like to draw a relatively thick B├ęzier curve that goes all the way to the edge of a rectangle. In the MWE below, the eventual clipping boundary is represented by the drawn rectangle. I like ...
4
votes
1answer
966 views

Put node on ellipse in tikz

I'm trying to make a simple drawing in tikz consisting of: An ellipse Some label inside the ellipse Another label near the curve An outer normal vector to the ellipse, again with a label Producing ...
3
votes
2answers
95 views

Tangent line to conic

I have an ellipse and I would like to draw a tangent to it in the point A, but I have no idea how. \documentclass{standalone} \RequirePackage{tikz} \usetikzlibrary{calc,through,arrows,fadings,...
3
votes
1answer
103 views

Plotting Normal distribution and tangent line in pgfplots

I'm trying to reproduce the following diagram in pgfplots. My MWE with regenerated graph is below: \documentclass[tikz,border=5mm]{standalone} \usetikzlibrary{positioning} \pgfmathdeclarefunction{...
3
votes
1answer
629 views

Arrow scaling problem. How can I zoom properly a very tiny part of a drawing?

Thanks to this solution, I can draw tangent line to a path. I'd like to zoom a very little part of my drawing. Here it is the code: \documentclass{standalone} \usepackage{tikz} \usetikzlibrary{calc,...
3
votes
0answers
110 views

How to recreate the following diagram? [duplicate]

I want to recreate the following diagrams Here is my MWE \documentclass{standalone} \usepackage{tikz} \usetikzlibrary{calc,intersections} \begin{document} \begin{tikzpicture} \draw [->, ...
2
votes
2answers
197 views

Drawing a graph like the following

I want to try to draw a graph in TikZ like the following one For now, I have no idea how to approach without getting messy. Are there any helpful packages? Do I have to draw every line individually? ...
2
votes
1answer
68 views

How to ensure that perpendicular lines appear perpendicular in TikZ

I am drawing a figure to illustrate the relationship between a curve, and its tangent and normal lines at a point. Due to the nature of the curve (cubic polynomial), I'm manually adjusting the x- and ...
2
votes
1answer
144 views

Making a Table (Matrix) with Tikz

I need to get start with making a matrix in Tikz. I need to study the manual but need some help with an example to get started. My minimal example is very poor but it is the best I can do without ...
2
votes
1answer
181 views

Adding text in TikZ-picture at position determined by combining tangent and intersection

Question How to add text to arbitrary positions in TikZ-pictures relative to certain objects (maybe even following their shape) ? Situation I have combined two solutions to Tikz-questions found ...
2
votes
0answers
272 views

Normal and tangent vector at specific absolute rather than relative point

I would like to draw a normal vector on a curve at a specific point. I looked up several questions (e.g. 1, 2, 3, etc) and the answers contain nice solutions for drawing a tangent or normal vector to ...
1
vote
1answer
163 views

How to draw the tangent vector at one endpoint of a curve

I would like to draw with the package tikz a smooth curve (not closed) and I would like to draw the tangent vector at one of the endpoints. I haven't had nice results so far. I used the library ...
1
vote
1answer
254 views

Draw a curve in TikZ with hairs growing on one side

I would like to be able to draw tikz pictures that generalize the following one: \documentclass{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw (0,0) to (1,0); \foreach \n ...
0
votes
3answers
2k views

How to draw a tangent line to the following curve?

I want to draw the following diagram Here is my MWE: \documentclass[border=3mm]{standalone} \usepackage{pgfplots} \pgfplotsset{width=8cm,compat=newest} \begin{document} \begin{tikzpicture} \...
0
votes
1answer
107 views

The curvature of a simple curve with two tangents

I have searched aimlessly for a prototype of my work but to no avail. Please, I would need help in plotting this. Can anyone please, help me out? Thanks. Remark: There would be a thick line between M ...