What are the parameters in the langaus.C?

[Wile_E_Coyote]

TMath::Landau + ROOT::Math::landau_pdf + CERNLIB G110 DENLAN
TMath::Gaus + Wikipedia → Gaussian function

Definition of Landau PDF in ROOT

Hi all, I am wondering if anyone else has noticed that the Landau function in ROOT returns a different distribution than the one in Mathematica, given a location parameter and scale parameter (mu, sigma), and understands the reason. I can only find this information about the ROOT definition: https://root.cern.ch/root/html524/TMath.html#TMath:Landau and that it comes from the Fortran package here: http://cmd.inp.nsk.su/old/cmd2/manuals/cernlib/shortwrups/node151.html For example, the ROOT d…