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copied!<p>In my own research I came upon a few useful resources:</p> <h2><a href="https://www.khanacademy.org/math/algebra2/logarithms-tutorial" rel="nofollow noreferrer">Khan Academy logarithms section</a></h2> <p>This is a terrific set of lessons on logarithms. This comment from a 6th grader sums it up nicely: </p> <blockquote> <p>Thank you so much. This week, my math teacher told me to challenge myself, so I tried logarithms. At first I was like, 'I can't do this, it's too hard'. Then I watched the video, and now they're even fun! I'm in 6th grade, my math teacher is impressed. I can't thank you enough.</p> </blockquote> <h2><a href="http://www.rubyquiz.com/quiz105.html" rel="nofollow noreferrer">Ruby Quiz #105: Tournament Matchups</a></h2> <p>This article contains a good example of using a base 2 log to determine the number of rounds required to complete a knock-out tournament given <em>x</em> teams.</p> <h2><a href="http://betterexplained.com/articles/an-intuitive-guide-to-exponential-functions-e/" rel="nofollow noreferrer">An Intuitive Guide To Exponential Functions & E</a></h2> <p>An excellent, intuitive (as you'd expect, given the title), guide to <strong>e</strong>, the base of the natural logarithm. Lots of illustrations and examples make this a gem of an article.</p> <h2><a href="http://betterexplained.com/articles/demystifying-the-natural-logarithm-ln/" rel="nofollow noreferrer">Demystifying the Natural Logarithm (ln)</a></h2> <p>This is the followup to the article to one about <strong>e</strong> and discusses the <strong>natural logarithm (ln)</strong> which, using the intuitive explanation given in the article, "gives you the time needed to reach a certain level of growth".</p> <p>There's actually loads of good content on the <strong><a href="http://betterexplained.com/" rel="nofollow noreferrer">Better Explained</a></strong> site. Truly, a splendid resource.</p> <p>Another tool that I had actually come across before but since completely forgotten about is <strong><a href="http://instacalc.com/" rel="nofollow noreferrer">Instacalc</a></strong>. It seems to be by the same person - Kalid Azad - who authors the Better Explained site. It's a really useful tool when hacking about with maths.</p>

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