The Riemann Curvature Tensor (of General Relativity) written in Christoffel symbols is quite beautiful. https://en.wikipedia.org/wiki/Ricci_curvature https://en

The Riemann Curvature Tensor (of General Relativity) written in Christoffel symbols is quite beautiful. https://en.wikipedia.org/wiki/Ricci_curvature https://en.wikipedia.org/wiki/Ricci_curvature Using Einstein summation notation and covariant (raising and lowering operator) derivatives the curvature of spacetime can be compactly described.