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MathWorld: Geodesic
by Eric W. Weisstein · Wolfram MathWorld
Wolfram MathWorld's reference entry on geodesics, giving the variational definition, the geodesic equation in terms of Christoffel symbols, and worked cases such as the sphere and plane. Useful for checking formulas and notation once you know basic differential geometry.
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Wolfram MathWorld
MathWorld is an online mathematics encyclopedia from Wolfram Research offering detailed, browsable articles on topics across the math spectrum, including algebra, geometry, calculus, and number theory. Each entry includes definitions, theorems, formulas, diagrams, worked examples, and links to further reading.
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Lectures on Geometrical Anatomy of Theoretical Physics
Learn geometrical anatomy of theoretical physics with Frederic Schuller! Explore geodesics and more in this insightful course.