Local Linearity

Author:Peter Keep

Notice that wherever you move the tangent line, you are able to zoom in and see how the red tangent line is a linear approximation of the function's curve at that point.

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Pythagorean Theorem: Quick Illustrator
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bewijs stelling van Pythagoras
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การลบจำนวนเต็ม
การคูณจำนวนเต็ม
การบวกจำนวนเต็มบวกกับจำนวนเต็มลบ
Tessellate the shape 1

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Similarity Transformation or Similarity
Constructions
Area
Geometry
Upper and Lower Sum or Riemann Sum