-static const Double_t k2PI = 2*kPI;
-static const Double_t kDegrad = kPI/180;
-static const Double_t kRaddeg = 180/kPI;
+static const Double_t k2PI = 2*TMath::Pi();
+static const Double_t kDegrad = TMath::Pi()/180;
+static const Double_t kRaddeg = 180/TMath::Pi();