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Perpetual calendar
Author:
Jean David
GeoGebra
1) Find the principle of the calendar. 2) Explain the red month for leap years.
New Resources
Colouring of Venn Diagram
Mosaic
Untitled
The 3D Space
Addition of Vectors Algeraically
Discover Resources
Κατασκευή παραβολικού κατόπτρου
Exponential & Logarithm
Area Under Archimedes' Spiral
Turquía (Samsun): bisectrices en el cuadrilátero.
Unit 1 Test
Discover Topics
Pie Chart or Circle Chart
Area
Stochastic Process or Random Process
LCM and GCD
Angles