Contains Cosmology calculator ala Ned Wright.

Download and unzip into a working directory. Then cd into working directory. The setup for this program requires the setup for 3 different dependencies.

First off it is important to install f2py on your machine! Google -> Download -> install.

• Setup for CAMB:

$ cd CAMB/

view readme.html for CAMB if needed at this point. Compile CAMB and test run it:

$ make
$ ./camb params.ini

The Makefile for CAMB may have to be eddited depending on the Fortran compiler present on your machine. The test call of camb is important as it writes a binary file of spherical bessels read in by the CosmoCalculator.

• Setup for Bessel function wrapper

cd back to working directory, then:

$ cd Bessel/Bessels_from_CAMB/
$ f2py -c -m bessels test_bessel.F90

This creates the object bessels.so which is called by the CosmoCalculator.

• Setup for camb4py

cd back to working directory, then:

$ cd camb4py-master/
$ python setup.py build --no-builtin

This generates a build/ folder which is used by the CosmoCalculator.

• Alternative Setup

If you're convinced each step should be working you might find it easier to use the setup script.

$ ./setup_script.sh

If the setup has been correct you should be able to cd back to the working directory and call

$ python calc.py 
$ python plot.py 
$ python writer.py 

add -h to any of the above to gain more information