Cover by Matthias Felleisen, Eight Students of Northeastern University, David Van Horn, Conrad Barski M.D.

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Conclusion. Good-Bye (Close Paren)

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This book only scratches the surface of Racket. In this chapter, we will give you a glimpse of what else you can find in the depths of Racket: realms of unique and powerful programming ideas. We hope you find the ideas intriguing and will continue to explore Racket. If you need help, Help Desk and the Racket users mailing list are there for you.

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).1 Run Racket Run

Due to some old, silly tradition, most books on programming languages start with a program that prints “Hello, world.” You may think we missed our chance, but here we go:

"Hello, world."

This is the entire program. No command for printing is needed. Racket knows what to do. Yes, you need to tell the Racket implementation that you’ve written the program ...

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