Index: mixer.py
===================================================================
--- mixer.py	(revisión: 11127)
+++ mixer.py	(copia de trabajo)
@@ -199,17 +199,17 @@
 
 class ExperimentalDotProd:
     def __init__(self, calc):
-        self.calc = calc
+        self.density = calc.density
+        self.setups = calc.wfs.setups
     
     def __call__(self, R1_G, R2_G, dD1_ap, dD2_ap):
         prod = np.vdot(R1_G, R2_G).real
-        setups = self.calc.wfs.setups
         # okay, this is a bit nasty because it depends on dD1_ap
         # and its friend having come from D_asp.values() and the dictionaries
         # not having been modified.  This is probably true... for now.
-        avalues = self.calc.density.D_asp.keys()
+        avalues = self.density.D_asp.keys()
         for a, dD1_p, dD2_p in zip(avalues, dD1_ap, dD2_ap):
-            I4_pp = setups[a].four_phi_integrals()
+            I4_pp = self.setups[a].four_phi_integrals()
             dD4_pp = np.outer(dD1_p, dD2_p) # not sure if corresponds quite
             prod += (I4_pp * dD4_pp).sum()
         return prod