1.2 The REPL

The REPL stands for read, eval, print, loop. What does that mean in practise? You can send commands to the hscheme interpreter and it returns you the value of that statement once it is evaluated. After that it once again awaits your input.

This is the hscheme REPL.

λ>

Just type your code into it and hscheme will reply what it evaluates to!