Pages

• about worlds of math & physics
• Electric dance
• Ellipse: geometric proof of the equivalence of two definitions
• How to run CDF demonstrations
• Interesting links
• Mathematical flowers
• Simulations
  • A poly function and its derivative
  • Anticipatory interaction model for pedestrians
  • Duncan Watts’ “Small Worlds” α-model
  • Eiffel tower
  • Electric dance (CDF simulation)
  • Electric dipole
  • Function derivatives
    • Function derivatives (answers)
  • Geogebra Basketball 3D – with rebounds
  • Interference of two waves in 3D (double slit experiment) – Geogebra
  • Intersection of a torus with a plane (simulation)
  • Standing waves in Bohr’s atomic model
  • The definite integral as the limit of a Riemann sum
  • Wave motion visualization
• Site map
• Strogatz-Vanderbei problem
• The dice roll with a given sum problem
• The strange properties of the infinite power tower
• The toric section: intersection of a torus with a plane
• The “trig” route to E=mc²

Posts by category

• Category: CDF demonstrations
  • An anticipatory interaction model for a crowd of pedestrians
  • The mathematics of social networks: understanding the “six degrees of separation” theory
  • A function and its derivatives
• Category: General
  • Phishing truths
  • “Social Influence in Markets and Networks (What’s So Viral About ‘Going Viral’?)”
  • The “dice roll with a given sum” problem
  • A nice (but not easy) combinatorics problem
• Category: Math
  • Waves propagation: the space view and the time view
  • Category: Beautiful math
    • Ellipse: geometric proof of the equivalence of two definitions
    • Mathematical flowers
    • Apollonian gaskets: beautiful math can be simple
    • Raindrops
    • A twisted Eiffel tower (useless but beautiful math)
• Category: Physics
  • Electric dance
  • First direct detection of gravitational waves by LIGO