Algebra

Multiple Linear Regression
Periods of Fibonacci Sequences mod m
Mobius Transformations of the Night Sky
Kummer's Objection
Irreducibility Criteria
Tensors, Contravariant and Covariant
Proving Algebraic Inequalities
Bit-String Orbits Under Rotate-XOR
Finding Roots From Newton's Sums
Piano Keys
Polynomials For Sums of Square Roots
Leaning Ladders
On Ptolmey's Theorem
Machin's Merit
The Twelve-Step Cycle of 1/(sin(x)cos(x))
Eulerians as Weighted Binomial Coefficients
Finite Subgroups of the Mobius Group
Intersecting Boats
String Algebra
Apollonius' Tangency Problem
Asymptotic Approach to 2D Arrays
Iterated Logarithmic Functions
Eigenvalue Problems and Matrix Invariants
Iterated Means
Fibonacci, 1/89, And All That
Square Roots by Pencil and Paper
A Quasi-Periodic Sequence
Sums of Powers in Terms of Symmetric Functions
Generalized Mediant
Tangents, Exponentials, and PI
Zeta Function and Harmonic Series
Recurrences For Harmonic Sums
Bernoulli Numbers and Harmonic Series
Quasi-Groups
Ancient Square Roots
Pythagoras On Dot and Cross Products
Closed Forms For the Logistic Map
Infinite Products and a Tangent Fan
Exponential Partitions
Atlantic City Method For Computing PI
Geometric Dot Products and Digit Reversals
Radical Expression For cos(2pi/7)
On f(x^2+y^2) = f(x)^2 + f(y)^2
Series Solution of Non-Linear Equation
Compressor Stalls and Mobius Transformations
The Shortest Path To Trigonometric Identities
Convoluting Arrays
Harmonic Sums of Integers with k Binary 1's
Gauss' Lemma Without Divisibility Arguments
Continued Fractions for e
Reflecting on the Geometric Mean
Sums of Powers
Trees on a Complex Plain
Inverse Square Weighted Interpolation
The Fundamental Theorem For Palindromic Polynomials
Reducing Quartics to Cubics
Platonions
Annuities With Inflation
Polynomials From Pascal's Triangle
Intersections of Polynomials
Angular Angst
Quarky Vector Triple-Product
From the Geometric Series to Stirling Numbers
Orthomagic Square of Squares
Automedian Triangles and Eigen Vectors
Continued Fractions and Characteristic Recurrences
Fiddling With Fibonacci
Arranging the Solutions of f(x+y+z)=xyz
Tangent To PI
Cross-Linear Interpolation
The Super-Symmetric Mean
Rational Sines of Rational Multiples of PI
Cyclic Redundancy Checks
Generalized Eulerian Numbers
Permutation Loops
Loxodromic Aliasing
Determining the Galois Group of a Polynomial
Formal-Numeric Series
Discrete Fourier Transforms
Napoleonic Vectors
Expulsion Sets
Bi-Rational Substitutions Giving Squares
Cyclic Divisibility
The Tetratorus and Other Multi-Layered Polyhedra
Inverse-Square Forces and Orthogonal Polynomials
Harmonia Mensurarum
Iterative Isoscelizing
Galois Groups
Hermitian Matrices