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Tag Archives: numbers
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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Positive SemiDefinite
Mathematical matrices are blocks of numbers. So they don’t necessarily have definite characteristics the way plain vanilla, singleton numbers do. They’re freer. For example 131 ∈ positive and −9 ∈ negative. But is positive, negative, or zero? Well, it has … Continue reading
Posted in Uncategorized
Tagged economics, kernel, linear algebra, math, mathematics, maths, matrices, numbers, positive semidefinite, signal processing
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Ethnic Food as a Poset
I like Indonesian food better than Japanese food i ⪰ j, and I like Japanese food better than English food j ⪰ e. I also like French food better than English food f ⪰ e, but I see French food as so different … Continue reading
How to multiply matrices
This is for my homies in math class. Mathematical matrices are blocks of numbers, arrayed in 2D. (Higherdimensional arrays are called tensors.) Left “times” right equals target. Each entry in the target is the result of a series of +’s … Continue reading
Posted in Uncategorized
Tagged 2D, angle, array, econometrics, inner product, linear algebra, linear operators, math, mathematics, maths, matrices, matrix multiplication, numbers, ODE's, operators, systems of differential equations, tensor, vectors
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!0 is 1
!0 === 1 Only tested this in Javascript and Ruby, but I bet it works in C like it did in Javascript. mars@scheherazade:~$ jsRhino 1.7 release 2 2010 01 20 js> 3+!04 Ruby is safeguarded against such hijinks: mars@scheherazade:~$ irbirb(main):001:0> … Continue reading
Posted in Uncategorized
Tagged c, facts, Javascript, numbers, programming, quirks, Ruby
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