bug fixes

nifty2go/basic_arithmetics.py

@@ -28,7 +28,7 @@ __all__ = ['cos', 'sin', 'cosh', 'sinh', 'tan', 'tanh', 'arccos', 'arcsin',
 
 def _math_helper(x, function):
     if isinstance(x, Field):
-        return Field(val=function(x.val))
+        return Field(domain=x.domain, val=function(x.val))
     else:
         return function(np.asarray(x))
 

nifty2go/field.py

@@ -429,10 +429,10 @@ class Field(object):
             result_list[1].val *= spec.imag
 
         if real_signal:
-            for i in result_list:
-                i.val = self._hermitian_decomposition(
-                                            i.val,
-                                            preserve_gaussian_variance=True)[0]
+            result_list=[Field(i.domain,self._hermitian_decomposition(
+                                     i.val,
+                                     preserve_gaussian_variance=True)[0])
+                         for i in result_list]
 
         if real_power:
             result = result_list[0]