• python install
https://www.runoob.com/python3/python3-install.html
https://www.python.org/downloads/
• pip install
https://blog.csdn.net/qq_17753903/article/details/101519860
• install matplotlib and numpy
pip install matplotlib
pip install numpy
• example
https://www.runoob.com/w3cnote/matplotlib-tutorial.html
https://matplotlib.org/stable/contents.html#