On simulating the four Solar System tests of general relativity using two-parameter post-Newtonian gravitation with Euler integration

A simple numerical solution for general relativity in the Newtonian weak field regime is provided – no tensor calculus is required. The topics under consideration are the deflection of photons and neutrinos by the Sun, the relativistic rotation of Mercury’s orbit plane, the Shapiro time delay, and the gravitational redshift – namely, the four Solar System tests of general relativity. To simplify the calculations, Euler integration is used. Hopefully, this numerical solution can be found to be an important tool, primarily due to this simplicity.