#  -------------------------------------------------------------------------------
#       Copyright (C) 2026  Joel Kimmich, Tim Jourdan
#  ------------------------------------------------------------------------------
#   License
#       This file is part of PyRC, distributed under GPL-3.0-or-later.
#  ------------------------------------------------------------------------------
"""
Matrix extraction
==================
This shows, how the matrix of the system can be extracted from the RCNetwork.
"""
# sphinx_gallery_tags = ["system","matrix"]
# sphinx_gallery_thumbnail_path = "_static/examples/matrix_extraction.svg"

# %%
# First, we get the network from the "Simple linear Network" example
from examples.example_setup import setup_simple_network
from pyrc import RCNetwork
from pyrc.tools.functions import sympy_to_tex

network: RCNetwork = setup_simple_network()

# %%
# Get the system matrix with symbols (no values substituted)
system_matrix_symbol = network.system_matrix_symbol

# %%
# You can make it a numpy matrix (not sparse):
import numpy as np

numpy_system_matrix_symbol = np.array(system_matrix_symbol.tolist())

# %%
# Get the system matrix with values
system_matrix = network.system_matrix

# %%
# Print the symbol matrix in LaTeX
sympy_to_tex(system_matrix_symbol, "C:\\Simulations\\my_latex.tex")