Physics World(물리,수학)

ROOT 사용해서 fitting하기. $$background:y=a+bx+cx^2$$ $$lorentzianPeak:y={ \frac{0.5ab}{\pi} \over (x-c)^2 + 0.25d^2 } $$ #include "TH1.h" #include "TMath.h" #include "TF1.h" #include "TLegend.h" #include "TCanvas.h" // Quadratic background function Double_t background(Double_t *x, Double_t *par) { return par[0] + par[1]*x[0] + par[2]*x[0]*x[0]; } // Lorenzian Peak function Double_t lorentzianPeak(Dou..