# Introduction In this tutorial, we will learn how to use the `LineCollection` function in Matplotlib to efficiently draw multiple lines at once. We will see how to plot multiple lines with different colors and styles, and how to use a masked array to mask some values. We will also learn how to use the `ScalarMappable.set_array` function to map an array of values to colors. ## VM Tips After the VM startup is done, click the top left corner to switch to the **Notebook** tab to access Jupyter Notebook for practice. Sometimes, you may need to wait a few seconds for Jupyter Notebook to finish loading. The validation of operations cannot be automated because of limitations in Jupyter Notebook. If you face issues during learning, feel free to ask Labby. Provide feedback after the session, and we will promptly resolve the problem for you.
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