![]() ![]() ![]() The simplest thing is to download a tar.gz archive of the latest released (master branch) version, v3.2.0, by clicking class_public-3.2.0.tar.gz. You are welcome to cite any other CLASS paper if relevant! The use of CLASS is free provided that when you use it in a publication, you cite at least the paper CLASS II: Approximation schemes (reference below). For CLASS we choose to use plain C for high performances, while organizing the code in a few modules that reproduce the architecture and philosophy of C++ classes, for optimal readability and modularity. in C++ and python, but these languages are known to be less vectorizable/parallelizable than plain C (or Fortran), and hence potentially slower. Classes are a wonderfull programming feature available e.g. Its name also comes from the fact that it is written in object-oriented style mimicking the notion of class. The purpose of CLASS is to simulate the evolution of linear perturbations in the universe and to compute CMB and large scale structure observables. ![]()
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