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In: 2026, Courtney Gibbons, Real and Complex Analysis
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Luckily, such a formula exists, and there are lots of ways to find it. In this post, we’ll find it using power series. Read on, brave bunny farmer… A Golden Formal Power Series Courtney Gibbons Hamilton College Some days, I feel a lot like the angel in Dürer’s Melencolia IRead More →

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In: 2026, Probability and Statistics, Sara Stoudt
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Jumping straight to the model might make us miss something interesting… What Makes a Plot Interesting? Prediction Edition Sara Stoudt Bucknell University How do you go about finding something “interesting” in a new dataset? I recommend taking the time to explore. This exploration process requires actually looking at the data,Read More →

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In: 2026, Algebra and Number Theory, Bill Casselman, History of mathematics
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This is not obviously a difficult problem. But in over two hundred years since Carl Friedrich Gauss first posed it, there has been remarkably little progress... Another Look at Circles and Squares Bill Casselman University of British Columbia Another look at circles and squares One of the most intriguing unsolvedRead More →

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In: 2026, Anil Venkatesh, Math and Social Sciences, Probability and Statistics
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My first encounter with the Shapley value came in the unlikely context of video game design... The Shapley Value, or How to Split a Bill in $n!$ Easy Steps Anil Venkatesh Adelphi University Introduction More often than not, a happy hour with my non-mathematician friends ends with the assumption thatRead More →

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In: 2026, Anna Haensch, Math and Social Sciences, Probability and Statistics
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Every ballot quietly asks a question, and depending on the voting method we use we choose to listen to or discard little bits of the answer... The Story Your Ballot Doesn’t Tell: The Mathematics of Single-Winner Elections Anna Haensch University of Wisconsin - Madison Introduction: Who’s the Spoiler? The greatRead More →
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Weekly Scheduled Maintenance Notice This blog is temporarily unavailable as we perform our regularly scheduled weekly maintenance. These updates are part of our ongoing effort to ensure the platform remains stable, secure, and performant for all users. During this maintenance window, you may experience intermittent disruptions in access, including delaysRead More →

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In: 2026, Algebra and Number Theory, History of mathematics, Ursula Whitcher
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Though the chart starts out in alphabetical order, there's a break in the pattern that offers a clue... Puzzling Like the Seventeenth Century Ursula Whitcher Mathematical Reviews (AMS) The following chart is taken from the second edition of a German-language arithmetic textbook by Anton Schultze. It was published in LiegnitzRead More →

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In: 2026, Discrete Math and Combinatorics, History of mathematics, Joseph Malkevitch
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Every time some mathematical question is answered, it generates new mathematical issues to think about.... Does Mathematics Progress? Joe Malkevitch York College (CUNY) Introduction With the beginning of a New Year—2026 in one system of counting, though not all societies use the same calendar—many people take the opportunity to examineRead More →
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In: 2026, Anil Venkatesh, Probability and Statistics
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Could we possibly gain more insight by trading away even more information? Information, Insight, and the Problem With Parameters Anil Venkatesh Adelphi University Introduction I have two data sets for us to consider. Both consist of observations of a single variable. Data Set 1 holds the daily number of positiveRead More →