| Salisbury B. Spherical Trigonometry for Dummies...2015.pdf | 4.16 MB |
Textbook in PDF format
Spherical Trigonometry for Dummies proves we live on a flat earth. Spherical Trigonometry is the study of curved triangles, triangles drawn on the surface of a sphere. The subject is practical, for example, because we don’t live on a sphere. The subject has numerous elegant and unexpected theorems. I give a few below
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