Fix double printing in the string and latex printers

sympy/functions/elementary/complexes.py

@@ -796,7 +796,7 @@ def _latex(self, printer, exp=None, *args):
         arg = printer._print(self.args[0])
         tex = r'%s^{\dagger}' % arg
         if exp:
-            tex = r'\left(%s\right)^{%s}' % (tex, printer._print(exp))
+            tex = r'\left(%s\right)^{%s}' % (tex, exp)
         return tex
 
     def _pretty(self, printer, *args):

sympy/physics/quantum/density.py

@@ -32,7 +32,7 @@ class Density(HermitianOperator):
     >>> from sympy.physics.quantum.density import Density
     >>> d = Density([Ket(0), 0.5], [Ket(1),0.5])
     >>> d
-    'Density'((|0>, 0.5),(|1>, 0.5))
+    Density((|0>, 0.5),(|1>, 0.5))
 
     """
     @classmethod
@@ -137,7 +137,7 @@ def apply_op(self, op):
         >>> A = Operator('A')
         >>> d = Density([Ket(0), 0.5], [Ket(1),0.5])
         >>> d.apply_op(A)
-        'Density'((A*|0>, 0.5),(A*|1>, 0.5))
+        Density((A*|0>, 0.5),(A*|1>, 0.5))
 
         """
         new_args = [(op*state, prob) for (state, prob) in self.args]
@@ -194,7 +194,7 @@ def _represent(self, **options):
         return represent(self.doit(), **options)
 
     def _print_operator_name_latex(self, printer, *args):
-        return printer._print(r'\rho', *args)
+        return r'\rho'
 
     def _print_operator_name_pretty(self, printer, *args):
         return prettyForm('\N{GREEK SMALL LETTER RHO}')

sympy/physics/quantum/operator.py

@@ -109,7 +109,7 @@ def default_args(self):
     _label_separator = ','
 
     def _print_operator_name(self, printer, *args):
-        return printer._print(self.__class__.__name__, *args)
+        return self.__class__.__name__
 
     _print_operator_name_latex = _print_operator_name
 

sympy/physics/quantum/spin.py

@@ -1441,15 +1441,16 @@ def _print_label_pretty(self, printer, *args):
         )
 
     def _print_label_latex(self, printer, *args):
-        label = [self.j, self.m]
+        label = [
+            printer._print(self.j, *args),
+            printer._print(self.m, *args)
+        ]
         for i, ji in enumerate(self.jn, start=1):
-            label.append('j_{%d}=%s' % (i, printer._print(ji)) )
+            label.append('j_{%d}=%s' % (i, printer._print(ji, *args)) )
         for jn, (n1, n2) in zip(self.coupled_jn[:-1], self.coupled_n[:-1]):
             n = ','.join(str(i) for i in sorted(n1 + n2))
-            label.append('j_{%s}=%s' % (n, printer._print(jn)) )
-        return self._print_sequence(
-            label, self._label_separator, printer, *args
-        )
+            label.append('j_{%s}=%s' % (n, printer._print(jn, *args)) )
+        return self._label_separator.join(label)
 
     @property
     def jn(self):

sympy/physics/vector/printing.py

@@ -70,7 +70,7 @@ def _print_Function(self, expr, exp=None):
                 subs = r""
 
             if exp:
-                supers += r"^{%s}" % self._print(exp)
+                supers += r"^{%s}" % exp
 
             return r"%s" % (name + supers + subs)
         else: