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Izidor Hafner
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Demonstrations 381  400 of 771
Nonlogarithmic Slide Rule
Nomogram for the Geometric Mean
Dissecting a Square to Four Squares
Elementary Transformations of a Sine Wave Quiz
Function Transformations Quiz
Linear Function Quiz
Coloring the Plane with a Rolling Cube
Coloring the Plane with a Rolling Tetrahedron
Estimate Derivative
Spies and Double Agents
When Is a Piecewise Function Differentiable?
Folding a Trapezoid into Two Different Rectangles
Trisecting an Angle Using a Lemniscate
Arc Length of a Logarithmic Spiral
Lemaire's Second Dissection of the Maltese Cross to a Square
Dudeney's Proof of the Pythagorean Theorem
Folding a Trapezoid into a Rectangle
Lemaire's Dissection of the Maltese Cross to a Square
Mechanism for Drawing a Logarithmic Spiral
Another OctagramToSquare Dissection
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