def plot_bloch_multivector(rho, title='<STR_LIT>', figsize=None):
if not HAS_MATPLOTLIB:<EOL><INDENT>raise ImportError('<STR_LIT>')<EOL><DEDENT>rho = _validate_input_state(rho)<EOL>num = int(np.log2(len(rho)))<EOL>width, height = plt.figaspect(<NUM_LIT:1>/num)<EOL>fig = plt.figure(figsize=(width, height))<EOL>for i in range(num):<EOL><INDENT>ax = fig.add_subplot(<NUM_LIT:1>, num, i + <NUM_LIT:1>, projection='<STR_LIT>')<EOL>pauli_singles = [<EOL>Pauli.pauli_single(num, i, '<STR_LIT:X>'),<EOL>Pauli.pauli_single(num, i, '<STR_LIT:Y>'),<EOL>Pauli.pauli_single(num, i, '<STR_LIT>')<EOL>]<EOL>bloch_state = list(<EOL>map(lambda x: np.real(np.trace(np.dot(x.to_matrix(), rho))),<EOL>pauli_singles))<EOL>plot_bloch_vector(bloch_state, "<STR_LIT>" + str(i), ax=ax,<EOL>figsize=figsize)<EOL><DEDENT>fig.suptitle(title, fontsize=<NUM_LIT:16>)<EOL>plt.close(fig)<EOL>return fig<EOL>
Plot the Bloch sphere.

    Plot a sphere, axes, the Bloch vector, and its projections onto each axis.

    Args:
        rho (ndarray): Numpy array for state vector or density matrix.
        title (str): a string that represents the plot title
        figsize (tuple): Has no effect, here for compatibility only.

    Returns:
        Figure: A matplotlib figure instance if `ax = None`.

    Raises:
        ImportError: Requires matplotlib.