Ruan Coetzee

About Ruan Coetzee

Cheatographer since 30 January, 2017.

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Latest Cheat Sheet

3 Pages

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Calculus Derivatives and Differentiation Cheat Sheet

Derivatives rules and common derivatives from Single-Variable Calculus. Most important rules/derivatives are bolded.

CROSSANT

26 Apr 24, updated 27 Apr 24

calculus, df, dx, derivative, dy

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2 Pages

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PHP Cheat Sheet

A quick reference guide for PHP, with functions references, a regular expression syntax guide and a reference for PHP's date formating functions. As of 28/6/14, the cheat sheet now includes popup links to the appropriate PHP manual pages.

DaveChild

19 Oct 11, updated 29 Feb 20

php, development, lamp, programming, web

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