%matplotlib notebook
import matplotlib.pyplot as plt
import numpy as np

fig = plt.figure()
ax = plt.axes(projection='3d')

X, Y = np.meshgrid(np.linspace(-5, 5, 10), np.linspace(-5, 5, 10))
Z = X**2 + Y**2

# Gradient Vector Components U and V
U, V = (2*X, 2*Y)

ax.plot_surface(X, Y, Z, cmap='YlGnBu')
ax.quiver(X, Y, 0, U, V, 0, length=1, normalize=True)

%matplotlib notebook
import matplotlib.pyplot as plt
import numpy as np

fig = plt.figure()
ax = plt.axes()

X, Y = np.meshgrid(np.linspace(-5, 5, 10), np.linspace(-5, 5, 10))
Z = X**2 + Y**2

U, V = (2*X, 2*Y)

ax.contourf(X, Y, Z, cmap='plasma')
ax.quiver(X, Y, U, V, normalize=True, length=1)

AttributeError                            Traceback (most recent call last)
Cell In[70], line 14
     12 U, V = (2*X, 2*Y)
     13 ax.contourf(X, Y, Z, cmap='plasma')
---> 14 ax.quiver(X, Y, U, V, normalize=True, length=1)

File C:\Python\310\lib\site-packages\matplotlib\__init__.py:1423, in _preprocess_data.<locals>.inner(ax, data, *args, **kwargs)
   1420 @functools.wraps(func)
   1421 def inner(ax, *args, data=None, **kwargs):
   1422     if data is None:
-> 1423         return func(ax, *map(sanitize_sequence, args), **kwargs)
   1425     bound = new_sig.bind(ax, *args, **kwargs)
   1426     auto_label = (bound.arguments.get(label_namer)
   1427                   or bound.kwargs.get(label_namer))

File C:\Python\310\lib\site-packages\matplotlib\axes\_axes.py:5103, in Axes.quiver(self, *args, **kwargs)
   5101 # Make sure units are handled for x and y values
   5102 args = self._quiver_units(args, kwargs)
-> 5103 q = mquiver.Quiver(self, *args, **kwargs)
   5104 self.add_collection(q, autolim=True)
   5105 self._request_autoscale_view()

File C:\Python\310\lib\site-packages\matplotlib\quiver.py:514, in Quiver.__init__(self, ax, scale, headwidth, headlength, headaxislength, minshaft, minlength, units, scale_units, angles, width, color, pivot, *args, **kwargs)
    512 kwargs.setdefault('facecolors', color)
    513 kwargs.setdefault('linewidths', (0,))
--> 514 super().__init__([], offsets=self.XY, offset_transform=self.transform,
    515                  closed=False, **kwargs)
    516 self.polykw = kwargs
    517 self.set_UVC(U, V, C)

File C:\Python\310\lib\site-packages\matplotlib\_api\deprecation.py:454, in make_keyword_only.<locals>.wrapper(*args, **kwargs)
    448 if len(args) > name_idx:
    449     warn_deprecated(
    450         since, message="Passing the %(name)s %(obj_type)s "
    451         "positionally is deprecated since Matplotlib %(since)s; the "
    452         "parameter will become keyword-only %(removal)s.",
    453         name=name, obj_type=f"parameter of {func.__name__}()")
--> 454 return func(*args, **kwargs)

File C:\Python\310\lib\site-packages\matplotlib\collections.py:1174, in PolyCollection.__init__(self, verts, sizes, closed, **kwargs)
   1153 @_api.make_keyword_only("3.6", name="closed")
   1154 def __init__(self, verts, sizes=None, closed=True, **kwargs):
   1155     """
   1156     Parameters
   1157     ----------
   (...)
   1172         Forwarded to `.Collection`.
   1173     """
-> 1174     super().__init__(**kwargs)
   1175     self.set_sizes(sizes)
   1176     self.set_verts(verts, closed)

File C:\Python\310\lib\site-packages\matplotlib\_api\deprecation.py:454, in make_keyword_only.<locals>.wrapper(*args, **kwargs)
    448 if len(args) > name_idx:
    449     warn_deprecated(
    450         since, message="Passing the %(name)s %(obj_type)s "
    451         "positionally is deprecated since Matplotlib %(since)s; the "
    452         "parameter will become keyword-only %(removal)s.",
    453         name=name, obj_type=f"parameter of {func.__name__}()")
--> 454 return func(*args, **kwargs)

File C:\Python\310\lib\site-packages\matplotlib\collections.py:202, in Collection.__init__(self, edgecolors, facecolors, linewidths, linestyles, capstyle, joinstyle, antialiaseds, offsets, offset_transform, norm, cmap, pickradius, hatch, urls, zorder, **kwargs)
    199 self._offset_transform = offset_transform
    201 self._path_effects = None
--> 202 self._internal_update(kwargs)
    203 self._paths = None

File C:\Python\310\lib\site-packages\matplotlib\artist.py:1186, in Artist._internal_update(self, kwargs)
   1179 def _internal_update(self, kwargs):
   1180     """
   1181     Update artist properties without prenormalizing them, but generating
   1182     errors as if calling `set`.
   1183 
   1184     The lack of prenormalization is to maintain backcompatibility.
   1185     """
-> 1186     return self._update_props(
   1187         kwargs, "{cls.__name__}.set() got an unexpected keyword argument "
   1188         "{prop_name!r}")

File C:\Python\310\lib\site-packages\matplotlib\artist.py:1160, in Artist._update_props(self, props, errfmt)
   1158             func = getattr(self, f"set_{k}", None)
   1159             if not callable(func):
-> 1160                 raise AttributeError(
   1161                     errfmt.format(cls=type(self), prop_name=k))
   1162             ret.append(func(v))
   1163 if ret:

AttributeError: Quiver.set() got an unexpected keyword argument 'normalize'