**riem.py**: calculates symbolically any component of the Riemann tensor from
any metric up to 4 dimensions

**christ.py** calculates symbolically any Christoffel symbol, also from a
metric up to 4D.

**appFinal.py** written using PyQt5 libraries builds an interface for the
two previous applications.

**newtonMulti.py**: Computes, for a given number of cosmological objects, a
2D simulation using a Newtonian potential (non-relativistic). It considers
the changes in the mass and in the angular momentum in each collision, and
builds the trajectory for all the particles using the potential created for
the rest. Prints the result in a file called by default "data.txt"

**einsteinMulti.cpp**: Does the same as *newtonMulti*, but an option is
added to perform the calculations with Swartchild potential, instead of
newton's one. It is also much more optimized in terms of performance.

**mercury.py**: plots the trajectory of mercury around the Sun, using both a
Newtonian potential and a version with a small relativistic correction. It
uses only standard python libraries like *matplotlib*. 

**simulFromData.py**: It reads the data written by newtonMulti.py or
einsteinMulti.cpp and plots it in an efficient way, by using pyqtgraph.

**plotGraphs.py**: It reads the data written by the Fortran scripts, splits
it regarding to the timesteps and plots it making a simple animation.

A set of **fortran files** that simulate a gravitational pulse in a
2-dimensional simplified space-time. This tool aims to perform a numerical
calculation of the intensity of the field induced by a 1-dimensional
gravitational wave using the *3+1 formulism* of the General Relativity.