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The Mathematics Genealogy Project - Welcome! Khan Academy. Ron Eglash | Profile on TED.com. African Fractals. Ron Eglash: The fractals at the heart of African designs. 8 math talks to blow your mind. Mathematics gets down to work in these talks, breathing life and logic into everyday problems. Prepare for math puzzlers both solved and unsolvable, and even some still waiting for solutions. Ron Eglash: The fractals at the heart of African designs When Ron Eglash first saw an aerial photo of an African village, he couldn’t rest until he knew — were the fractals in the layout of the village a coincidence, or were the forces of mathematics and culture colliding in unexpected ways? Here, he tells of his travels around the continent in search of an answer.

How big is infinity? There are more whole numbers than there are even numbers … right? Actually, there aren’t. Arthur Benjamin does “Mathemagic” A whole team of calculators is no match for Arthur Benjamin, as he does astounding mental math in the blink of an eye. Scott Rickard: The beautiful math behind the ugliest music What makes a piece of music beautiful? A First Course in Linear Algebra (A Free Textbook) Open-Source Textbooks Instead I am concentrating recommendations and examples within the undergraduate mathematics curriculum, so please visit the Open Math Curriculum page.

If you are linking to this site, please use that page for a broad list, or link to linear.pugetsound.edu specifically for the Linear Algebra text. Thanks for your help publicizing open textbooks. This page contains some links to similar open-source textbooks. Notice however that a book that is free to download, but with a copyright that reserves the author's rights, is not really free. For a book to have freedom, the copyright holder needs to grant the text additional freedoms through a license that makes these conditions explicit.

For this reason, I have included some links to different licenses and essays on open-source. Free Textbooks Abstract Algebra: Theory and Applications, by Thomas W. Freedom Sources of Open-Content Textbook Revolution Careful capsule descriptions of free textbooks in many disciplines. The Story of Maths Part 1 of 4 - The Language of the Universe. The Story of Maths Part 2 of 4 - The Genius of the East. The Story of Maths Part 3 of 4 - The Frontiers of Space. The Story of Maths Part 4 of 4 - To Infinity and Beyond. Unsolved Problems. List of unsolved problems in statistics. Inference and testing[edit] How to detect and correct for systematic errors, especially in sciences where random errors are large (a situation Tukey termed uncomfortable science).The Graybill–Deal estimator is often used to estimate the common mean of two normal populations with unknown and possibly unequal variances.

Though this estimator is generally unbiased, its admissibility remains to be shown.[3]Meta-analysis: Though independent p-values can be combined using Fisher's method, techniques are still being developed to handle the case of dependent p-values.Behrens–Fisher problem: Yuri Linnik showed in 1966 that there is no uniformly most powerful test for the difference of two means when the variances are unknown and possibly unequal. That is, there is no exact test (meaning that, if the means are in fact equal, one that rejects the null hypothesis with probability exactly α) that is also the most powerful for all values of the variances (which are thus nuisance parameters).

List of unsolved problems in mathematics. 2. Convert Units of Measurement and much more. Math Run - Mathgame - how fast are your Math skills? A simple Math Training Game for everyone.