The py launcher—or just py for short—is a shortcut to all the installed versions of Python on your system. With a command-line switch, you can see at a glance all the Python interpreters you ...

We use matplotlib for plotting in python. To have some more control over the coordinate axis we'll use .subplots. The first few lines of code just change the plot from a bounding box to a set of ...

We use matplotlib for plotting in python. We also have to convert SymPy matrices to NumPy arrays prior to plotting. Therefore, we prefer to define vectors as NumPy arrays if we intend to just plot ...