Tutorials

Classic CLASS example notebooks, updated for CLASSpp and executed nightly against master. Download any notebook via the “Show Source” link in its right-hand sidebar.

Recommended order:

• Warmup: your first CLASS computation
• Cosmological distances
• Thermodynamics history
• Anatomy of the CMB temperature spectrum
• Perturbation evolution at one wavenumber
• Perturbations at one moment in time
• Varying the effective number of neutrinos
• Neutrino mass hierarchies
• Dark-matter annihilation and the CMB
• Growth of structure with dynamical dark energy
• Scalar and tensor CMB spectra