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Table 2

Example of a typical call sequence for iCosmo, with different levels of the code separated by horizontal lines.

Instruction Description

1 fid=set_fiducial(cosmo_in={omega_m:0.31}) Set fiducial parameters, choosing a non-default value of the parameter Ωm
2 cosmo=mk_cosmo(fid) Compute basic cosmological quantities (e.g., distance measures, power spectrum)
3 plt_cosmo,cosmo,“z”, “da” Plot angular-diameter distance DA(z) as a function of redshift z
4 plt_pk,cosmo,z=0 Plot non-linear matter power spectrum P(k) at z = 0

5 sv=mk_survey(fid,“sv1”) Read survey parameters for the preset DUNE experiment
6 cl=mk_cl_tomo(fid,cosmo,sv) Compute cosmic shear power spectrum Cl
7 cl_cov=mk_cl_cov_tomo(fid,cl,sv) Compute cosmic shear power spectrum errors
8 plt_cl,cl,[0,0],cl_cov,/errors Plot shear power spectrum and associated errors

9 fish=mk_fisher_lens(fid,sv) Compute Fisher matrix for the specified lensing survey
10 margin_fisher,fish,fish2,[0,1,1,0,0,0,0,0] Marginalise Fisher matrix over unwanted parameters
11 plt_fisher_2p,fisher2 Plot Fisher matrix error contraints for interesting parameters w0 and wa

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