Drawing a Stack of Decagons with Turtle Graphics in Python - Recursive Function

This is a Python code that uses the turtle module to draw a stack of decagons recursively. The decagons are drawn with random colors using the colorsys module.

The program creates a turtle screen and sets its title, size, and world coordinates. It then sets the turtle's speed to maximum and hides it. The turtle's tracer is also set to 0 so that the turtle doesn't draw the image as it's being created.

The program defines a recursive function called decagons that takes four parameters: x and y are the coordinates of the decagon's center, length is the length of each side of the decagon, and n is the recursion depth.

The decagons function draws a decagon at the given center coordinates with the given length and random color. It then recursively calls itself four times with smaller length and reduced recursion depth to draw four smaller decagons around the center decagon. This continues until the recursion depth reaches 0, at which point the function returns.

Finally, the program calls the decagons function with initial parameters to draw the first, largest decagon. It then updates the screen to display the turtle drawing and keeps the turtle window open until the user closes it.

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