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凹透鏡 Concave Lens
Author:
Alex CHIK
Drag the grey/ red points to change positions of the object. Drag the black point to change source of light.
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
Poorly Drawn Parallelograms 3
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Average Rate of Change: Graph a Function (1)
alg2_05_05_01_slider_practice_flvs
alg2_05_05_01_applet_exp_flvs
Discover Resources
log transformation
Ceviene Ide Rang k 2.
Self Portrait - EMAT 6700
Area of Triangle
สีพลวัดแบบเคลื่อนปุ่ม
Discover Topics
Interest Calculation
Similarity Transformation or Similarity
Rotation
Logarithm
Standard Deviation