What is the "kernel" in a Jupyter notebook?
In Jupyter Notebook, a kernel is the computational engine that executes the code you write in the notebook's cells. Each notebook is connected to a specific kernel, which determines the programming language you can use. For example , the most common kernel is the IPython kernel , which runs Python code, but there are kernels available for many other languages , such as R, Julia, and JavaScript. Key Functions of a Kernel: Execution : It runs the code in each cell and returns the output. State Management : It maintains the state of variables, functions, and imports, allowing you to run cells out of order while preserving the environment. Communication : It communicates with the notebook's user interface to display output, error messages, and visualizations. Interactivity : It supports interactive computing, allowing you to visualize data using libraries like Matplotlib and Plotly. Common Kernel Actions: Restart : Clears all variables and resets the environment, effectively ...