An arithmetic theorem and its demonstration

An easier solution of a Diophantine problem about triangles, in which those lines from the vertices which bisect the opposite sides may be expressed rationally

An easily verifiable proof of the Brouwer fixed point theorem

An easy method for finding many very large prime numbers

An easy method for finding the integral of the formula $\int (x^{n+p} - 2 x^n\cosζ+ x^{n-p})/(x^{2n} - 2 x^n\cosθ+ 1) dx/x$ when the upper limit of integration is $x=1$ or $x=\infty$

An elementary proof of $\,\sum_{n \ge 1}{1/n^2} = π^2/6\,$ and a recurrence formula for even zeta values

An Historical Perspective on Fractional Calculus in Linear Viscoelasticity

An illustration of a paradox about the idoneal, or suitable, numbers

An inquiry into whether or not 1000009 is a prime number

An observation on the sums of divisors

An ode to Phipps' jeep convoys

An Unusual Proof that the Reals are Uncountable

Analyse et synthèse harmoniques

Angles in Complex Vector Spaces

Annotations to a certain passage of Descartes for finding the quadrature of the circle

Another Hanukkah Miracle: The Gaps Between Consecutive Christmas-in-Hanukkah Years is ALWAYS a Fibonacci Number!

Another look at e

Applications of Matrices Multiplication to Determinant and Rotations formulas in $\setR^n$

Applied Categories and Functors for Undergraduates

Applied Mathematics, the Hans van Duijn way