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Huygens Principle
Author:
Lenore Horner
illustration of Huygen's principle
New Resources
Quadrilateral Fractal Time-Waster
Fractal Triangle and Incircle
Fractal Hand Turkey
Parabola and Dandelin Sphere
Open Middle: Pythagorean Theorem (1)
Discover Resources
Simpson's Line
Curvature of any smooth function
GeoGebra Tutorial
MultiplicationCopy
Kopie von Ball reflection in rectangle (trajectory)
Discover Topics
Median Line
Tangent Line or Tangent
Kite
Logarithmic Functions
Trapezoid