# Tagged Questions

2k views

### How to make the length of a car moving on a roller coaster track remain unchanged?

For any arbitrary parametric smooth curve, how can I make the length of a car remain unchanged? \documentclass[pstricks,border=12pt]{standalone} \usepackage{pst-plot,pst-node} \pstVerb { ...
402 views

### Plot the cusp catastrophe surface

I'm trying to draw (plot) the Cusp catastrophe surface into latex using any software logic. I am completely stuck because I'm definitely not a mathematician. The surface has the potential: V(x) = ...
3k views

### Drawing a Reuleaux Triangle

A Reuleaux triangle is a shape of constant width sort of like a rounded equilateral triangle. (Reuleaux triangle - Wikipedia, the free encyclopedia) It can be formed by the intersection of three ...
661 views

### Chaotic billiard with TikZ

I'm looking for a TikZ library that could help me to represent different shapes of chaotic billiards. Any idea?
250 views

### Is there another better way to have a region with gradient opacity?

My objective is to get a region with gradient opacity. In the following MWE, the region is a quarter of a disk on the top a bird. I made the gradient opacity by partitioning the sector into 45 ...
2k views

### What is the simplest way to draw this triangle exactly?

I want to see how we can exactly construct the following diagram as simple as possible. It means that the manual calculation should be avoided. Note that the angle marks attached to angles ...
2k views

### How to automatically draw tree diagram of prime factorization with LaTeX?

I want to have a simple interface to automatically draw tree diagrams of prime factorization. For example, by invoking the following code, \PrimeTree{36} \PrimeTree{90} \PrimeTree{112} ...
466 views

### How to draw spherical triangles?

Does anyone know how to draw spherical arcs and spherical triangles using LaTeX?
175 views

### Help with the geometry figure

Can someone help me with creating such a figure in metapost?
415 views

### File error in non stop mode [closed]

I am trying to make a feynman diagram using feynmf. My code is \documentclass[a4paper,11pt]{article} \usepackage{xcolor} \usepackage{amsthm} \theoremstyle{definition} \newtheorem{exe}{Exercise} ...
167 views

### Picture and Paragraph in Metapost

How to insert a paragraph in Metapost and a drawing below that? This has to be done within a single Metapost block, (i.e) within a single \startMPcode and \stopMPcode block Sample image :
617 views

### What tool was used to generate these technical diagrams?

I was reading a paper or Computed Tomography, and I found these two nice diagrams: And I was wondering, what tool was used to make them. I've worked with Tikz for example, but I believe it would ...
564 views

### Creating a colored bar chart using MetaPost or pgfplots [closed]

Right now I have this: input graph input sarith beginfig(1) draw begingraph(3cm,2cm) gdata("data1.d", v, path p; augment p (v1,0); augment p (v1,v2); augment p (v1 Sadd ...