Tutorials and FAQs

The following introductory tutorials will help you get started with 21cmFAST:

• Running and Plotting Coeval Cubes
  • Basic Usage
  • Advanced Step-by-Step Usage
  • Using the Automatic Cache
• Running and Plotting LightCones
• Fiducial and lightcones
  • global properties
  • 21-cm power spectra
• Accessing evolutionary Coeval data
  • Create an example box
  • Accessing cached data from Coeval
  • Accessing Cached Data from a Lightcone
  • Gathering cached data into one file
• Fiducial and lightcones
  • global properties – optical depth
  • 21-cm power spectra

If you’ve covered the tutorials and still have questions about “how to do stuff” in 21cmFAST, consult the FAQs:

• Installation FAQ
  • Errors with “recompile with -fPIC” for FFTW
• Miscellaneous FAQs
  • My run seg-faulted, what should I do?
  • Configuring 21cmFAST
  • Global Parameters
  • How can I read a Coeval object from disk?
  • How can I read a LightCone object from file?