note on fct Compute::scalarR

Sim/Computation/SpecularComputation.cpp

@@ -63,7 +63,7 @@ double Compute::magneticR(const SpinMatrix& R, const SpinMatrix& polMatrix,
     return std::abs(trace);
 }
 
-double Compute::scalarR(complex_t R)
+double Compute::scalarR(complex_t R) // Let's keep this function for analogy with magneticR
 {
-    return std::norm(R);
+    return std::norm(R); // absolute value squared
 }