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Trigonometric Functions
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Demonstrations 21  40 of 173
Four Theorems on Spherical Triangles
Spherical Law of Cosines
Sines of the Dihedral Angles of a Tetrahedron
Polar Plots Drawn by a Mechanical Linkage
Spherical Triangle Solutions
Machin's Computation of Pi
Copernicus's Chord Tables from De Revolutionibus Orbium Coelestium
Copernicus's Chord Tables
Representations of Trigonometric and Hyperbolic Functions in Terms of Sector Areas
3D Lambdoma
First and Second Derivatives of a Periodic Function Using Discrete Fourier Transforms
Spinning Out Sine and Cosine
Boole Differential Equation with Continued Fractions
Mapping Rectangles by the Elementary Transcendental Functions
How the Trigonometry Functions Are Related
Euler's Estimate of Pi
Sine and Cosine Helix
Illustrating Cosine with the Unit Circle II
A Library of Functions with Transformations
Trisecting an Angle Using a Lemniscate
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