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Happy and Sad Numbers
Author:
t.spillane
Topic:
Numbers
A dynamic Happy or Sad number checker
GeoGebra
Move point X around to see if the iterations converge to 1 or loop. The x and y co-ordinates together represent one number. E.g. (12,2) = 122
New Resources
Poorly Drawn Parallelograms 2
Dissections by Guillermo Bautista
Poorly Drawn Parallelograms 3
Icosahedron1
Parallelograms: Quick Investigation
Discover Resources
Point-Slope Form
subplot_experiment
EigenVals EigenVecs for 3x3
Shaded Square
LINEAR PAIR
Discover Topics
Division
Complex Numbers
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Curve Sketching