- 'Applications of the Absolute Differential Calculus' by A. J. McCONNELL.
- 'Tensor Analysis' by I. S. Sokolnikoff (Second Edition, 1964).
- 'An Introduction to Tensor Calculus and Relativity' by Derek F. Lawden
In this essay J is used to implement some of the material contained in these references.
For convenience, the terminology of cosmology is used in some descriptions.
In a search for insight into how the electromagnetic field tensor might be calculated, the Riemann-Christoffel tensor is calculated using Einstein's tensor as the metric tensor.
Download the script: Schwarzschild.ijs
Contributed by TomAllen