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Geometry
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Demonstrations 141  160 of 2911
Halving a Triangle
Algorithm for Bicubic Nonuniform BSpline Surface Interpolation
SixAstroid Designs
Saturn's Seasonal Sundial
Another Variant of Kosnita's Theorem
Trilateration and the Intersection of Three Spheres
Regular 2nGon to Rectangles Dissection
The Joukowski Mapping: Airfoils from Circles
NumberTheoretic Construction of Digital Circles
Blood Spatter Trigonometry
Insphere and Four Exspheres of a Tetrahedron
Cylindrical Surfaces from NURBS Curves
Slicing a Sphere along Two Parallel Planes
Constructing a Swung Surface around a BSpline Curve
Rings around the Vertices of a Polyhedron
Designs from Mechanical Linkages
Center of Mass of a Perforated Square Plate
Tetrahedron Built from Rhombic Dodecahedra or Spheres
Mirror Symmetries of the Cube
Concurrent Diagonals in a 30Gon
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