Lepton (muon) magnetic anomaly: detailed calculation of the Schwinger Term

Short notice on (exact) trigonometric interpolation

Examples of approximations by series based on derivatives matching (“Taylor-like” approximations)

Unsuccessful attempt to speed-up numerical integration of functions with peaks and some related topics: *Monte Carlo “area” integration *Speed-up of a real uniform random number

Cosine and sine interpolation. Interpolation for arbitrary series with multiplicative coefficients.

Mathematical beauty with prime numbers: Elegant sieve-based primality test formula constructed with periodic functions