Update the document "Concept 2: Dynamical System"

brainpy/_src/context.py

@@ -58,8 +58,8 @@ def save(self, *args, **kwargs) -> None:
     """Save shared arguments in the global context."""
     assert len(args) % 2 == 0
     for i in range(0, len(args), 2):
-      identifier = args[i * 2]
-      data = args[i * 2 + 1]
+      identifier = args[i]
+      data = args[i + 1]
       self._arguments[identifier] = data
     for identifier, data in kwargs.items():
       self._arguments[identifier] = data

brainpy/_src/dynsys.py

@@ -71,7 +71,7 @@ def update(self, x):
   return func
 
 
-class DynamicalSystem(bm.BrainPyObject, DelayRegister):
+class DynamicalSystem(bm.BrainPyObject, DelayRegister, ReceiveInputProj):
   """Base Dynamical System class.
 
   .. note::
@@ -120,6 +120,9 @@ def __init__(
                                f'which are parents of {self.supported_modes}, '
                                f'but we got {self.mode}.')
 
+    # Attribute for "ReceiveInputProj"
+    self.cur_inputs = bm.node_dict()
+
     # local delay variables:
     # Compatible for ``DelayRegister``
     # TODO: will be deprecated in the future
@@ -573,7 +576,7 @@ def reset_state(self, *args, **kwargs):
     pass
 
 
-class Dynamic(DynamicalSystem, ReceiveInputProj):
+class Dynamic(DynamicalSystem):
   """Base class to model dynamics.
 
   There are several essential attributes:
@@ -629,9 +632,6 @@ def __init__(
     # initialize
     super().__init__(name=name, mode=mode)
 
-    # Attribute for "ReceiveInputProj"
-    self.cur_inputs = bm.node_dict()
-
   @property
   def varshape(self):
     """The shape of variables in the neuron group."""