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Content Guidelinesplugin-autotooltip__plain plugin-autotooltip_bigContent guidelines

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How to edit pagesplugin-autotooltip__plain plugin-autotooltip_bigEditing pages

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In a departure from the usual Wiki format, Wikenigma assigns 'Importance Ratings' to some pages.

The idea is to separate articles which are considered (by the editors) to cover exceptionally important unknown issues from those which (although also u…

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Q. Why the weird syntax? A. Like most Wikis, the site doesn't use HTML for formatting (security reasons etc). A guide to the special syntax can be found here. Unfortunately it can be quite confusing at first - but there's now a new 'Visual …

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• Oct 2020 : A milestone of 500 unknown articles has been reached.

• Aug 2020 : Currently (beta) testing the new 'WYSIWYG' (What You See Is What You Get) page editor. It greatly simplifies the editing process, avoiding the need to learn th…

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Please note that in common with other publicly editable wikis, this website is not responsible for content posted by the public. Nevertheless, the ongoing editing process should be able to remove unsuitable content in a reasonable time. If you…


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Pi normality

A 'normal' sequence of numbers is one in which no digit occurs more frequently than any other. The mathematical equivalent of White Noise.

'Normality' is usually considered to be one of the tests for randomnessplugin-autotooltip__plain plugin-autotooltip_bigRandom numbers

"“We can never decide for sure that a number is random, but what we can do is apply an increasing number of tests and treat our sequence of numbers as innocent until proved guilty.”"

Source Colva Roney-Dougal, Senior Lecturer in Pure Mathematics at the…
.

The Pi sequence has now been computed to many trillions of digits, and appears to pass all tests for randomness, including 'normality'. But the conjecture that π is 'normal' has not yet been proven or disproven.

See: Are the digits of Pi random? US Berkeley Lab.

Note : No 'naturally occurring' mathematical constant has ever been proved to be 'normal' . Examples include the square root of 2, and the natural logarithm of 2.


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