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Tag Archives: noncommutative
More Quasimetrics
A list of quasimetrics from real life: oneway street temperature preferences ratchet running distance around the track magnitude downside risk in a financial portfolio Facebook EdgeRank progress time I love you, but you like me back. Ouch. (“He loves me … Continue reading
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Tagged finance, general relativity, mathematics, measure, metric space, noncommutative, physics, quasimetric, temperature
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What Comes After Infinity?
When I was in kindergarten, we would argue about whose dad made the most money. I can’t fathom the reason. I guess it’s like arguing about who’s taller? Or who’s older? Or who has a later bedtime. I don’t know … Continue reading
Posted in Uncategorized
Tagged arithmetic, bazooka, cardinal number, cardinality, cardinals, children, elementary school, generalised number, generalised numbers, Georg Cantor, gradeschool, infinite, infinity, kickball, kids, math, mathematics, maths, money, noncommutative, noncommutative operator theory, noncommutative operators, noncommutativity, numbers, objectoriented programming, ontology, operator overloading, ordinal number
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The Hardest Sport
“Hitting a baseball is the hardest thing to do in sports.” —Ted Williams On the subject of noncommutative things from everyday life: what’s the hardest sport? People love to debate this question. Fans with a favourite sport say their athletes … Continue reading
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Tagged math, mathematical modelling, mathematics, maths, noncommutative, sports, sports fans
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Valuation
Whenever a government assesses “the” value of a property for tax purposes; whenever you project figures in a pitch to investors; whenever an accountant writes a single number on a line that isn’t referring to Cash Itself — a distribution … Continue reading
Noncommutative distances between industries
The distance from your house to the grocery must be the same as the distance back, but 20thcentury mathematicians speculated about circumstances where this might not be the case. Very smallscale physics is noncommutative in some ways and so is … Continue reading
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Tagged Abelian, asymmetric, asymmetry, business, business school, commutativity, distance, investment banking, marketing, math, mathematics, maths, metric, nonAbelian, noncommutative, noncommutative, PR, quantum field theory, quantum physics, quasimetric, quasimetrics, symmetric, symmetry
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Circles
A circle is made up of points equidistant from the center. But what does “equidistant” mean?Â Measuring distance implies a value judgment — for example, that moving to the left is just the same as moving to the right, moving forward … Continue reading
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Tagged angle, circle, education, geometry, Henri PoincarĂ©, imagination, long reads, Lp norm, L_p norm, math, mathematics, maths, metric, metric spaces, metrics, noncommutative, norm, norms, PoincarĂ© disk, size
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Facebook EdgeRank Another quasimetric! Actually a pseudoquasimetric. Facebook’s news feed decides what status updates to show you based on three factors: affinity u — how much you like somebody (FB’s guess) type of post w — videos and photos are … Continue reading