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rztryt
Author:
bert@ernie.be
GeoGebra
New Resources
Droste effect
Explore the invariant lines of matrix {{-2,5},{6,-9}}
探究由平行線和截線所成的角
Tutorial: Create lists of numbers and objects
alg2_05_05_04_applet_exp_fxn_flvs
Discover Resources
Testing
ConeSurf
Introduction to Quadrilateral
Relationships between variables
Blank Grid
Discover Topics
Volume
Geometric Mean
Division
Arithmetic Mean
Cone