19 questions linked to/from Sieve of Eratosthenes in tikz
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I am writing an article in LaTeX 2e. Part of the article describes the Sieve of Eratosthenes, and I want to show examples of how multiples of a prime are removed from the sieve by showing them in a ...
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Practical use of Lua

Although I always use LuaLaTeX to compile my documents, I don't really use Lua that often. Sometimes I even forget about it. In my last document I used it to write a random word generator, which ...
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How to produce a list of prime numbers in LaTeX

I would like to write a LaTeX script that produces all the prime numbers between the numbers n and m, where n < m. How can I do this? I feel it should not be that hard, but I cannot seem to program ...
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TikZ: halo around text?

I'd like to label my nodes with text that has a 'halo' around it of a different colour. Is this possible? The reason is that my label text covers different parts of my diagram with different ...
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Converting beamer slides to animated images

As a follow up to Highlighting specific parts of a TikZ drawing, I'd like to know how to generate an animated image (gif) from a series of beamer slides. Martin Scharrer came up with this example: ...
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How to undo a \def (i.e., Need a \undef capability)

I thought the way to undo a \def was to define it to \relax, but that does not appear to work. Also, am not sure why this produces no output if I try to use \def instead of \let in my attempt to do ...
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How can I know if a node is already defined?

I think I've seen this question before, but I can't find it. The problem is simple; before I assign a name to a node I would like to know if the name is already used. I think when a node is created \...
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Automation: static array for the sieve of Eratosthenes

I would like to produce one simple array of numbers from 1 to 100 of dimension 10*10, where 1 will not be displayed. In Sieve of Eratosthenes in tikz there are pretty animations, but what I need is ...
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tikz: a big box with fixed width containing smaller boxes

I want to render with tikz something like : The surrounding big box should behave somehow like a minipage : the width is fixed, and the height should grow if we add sufficiently small boxes inside. ...
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TikZ animated Equation in Beamer

I'm trying to reproduce the example on creating a Presentation with LaTeX Beamer – Equations and tikz and the given code throws the following error Package pgfkeys Error: I do not know the key '/...
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Less than or equal comparison within a whiledo

I am in the process of cleaning up the code for Sieve of Eratosthenes in tikz, but saw that when I initially did the code, I could not figure out how to do a <= comparison within the \whiledo, and ...
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Tikz Nodes Positions and Shapes with a General Number of Nodes

My purpose is rather simple: use tikzpictures to draw tables of numbers, where the numbers are drawn inside colored boxes with fancy shapes, with different shapes and colors for different numbers. ...
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Scaling the sieve of Eratosthenes in TikZ

Consider the following code, taken from Alain Matthes' answer here. Code \documentclass{article} \usepackage{tikz} \makeatletter \pgfutil@ifundefined{pgfmath@function@isprime}{% \newif\ifpgf@...