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Here is a Wiki for primes and related topics, still under construction.

Examples in math (LaTeX) notation

<math>N \supset \mathbb P = \{ p_n \mid n \in N \}</math>

N \supset P = {p_{n} ∣ n \in N}

<math>\sideset{_1^2}{_3^4}\prod_a^b</math>

{}_{1}^{2}\prod_{3}^{4}_{a}^{b}

<math>\iiiint\limits_{F} \, dx\,dy\,dz\,dt</math>

\underset{F}{⨌} d x d y d z d t

<math>f(n) =
\begin{cases}
  n/2, & \mbox{if }n\mbox{ is even} \\
  3n+1, & \mbox{if }n\mbox{ is odd}
\end{cases}</math>

f (n) = {\begin{cases} n / 2, & if n is even \\ 3 n + 1, & if n is odd \end{cases}

<math>\sum_{i=1}^\infty \frac{1}{p_i} = \frac{1}{2} + \frac{1}{3} + \frac{1}{5} + \frac{1}{7} + \frac{1}{11} + \dotsb = \infty</math>

\sum_{i = 1}^{\infty} \frac{1}{p_{i}} = \frac{1}{2} + \frac{1}{3} + \frac{1}{5} + \frac{1}{7} + \frac{1}{11} + \dots = \infty

<math>\pi(1)=0\ ;\ \pi(10) = 4\ ;\ \pi(100) = 25\ ;\ \pi(1000) = 168; \ \pi(1000000)=78498</math>

π (1) = 0; π (10) = 4; π (100) = 25; π (1000) = 168; π (1000000) = 78498

Example of page categorizations

Example of prime sequence and reservation

Configuration tests: external links open in new browser tab/window

Examples of template usage and data table generating

Examples for including PDF documents

Example for fetching data from RieselPrime database

The data are collected from the internal SQL database by Extension:External Data:

table: RieselPrime
field: rieselk_id = 4 (-> "1" = Mersenne primes)
fields collected: n, comment, utm (prime index n, comment like "Woodall", utm: id of Top5000 page)

Functioning but still complicated: no parser/string functions allowed in "#for_external_table" statement, therefore using variables.

Mersenne primes $2^{n} - 1$ , prime for n:

Examples for showing images of external pages

Images from external sources have to be put as full link on a page.

Images from Commons Wikimedia

Images can only be diplayed in available sizes, no resize possible.