The goal of this problem set is to understand the representation and evaluation of simple programs.

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HtDP Problems - 1:

Review section 14.4 in the book.

Solve problems 14.4.1, 14.4.2, 14.4.3, and 14.4.4

A good, clear data definition is key... and a template certainly wouldn't hurt.

HtDP Problems - 2:

With your evaluate-expression function in hand (or mind) review section 17.7 in the book.

Solve problems 17.7.1, 17.7.2, 17.7.3, and 17.7.4

Be sure that all your recursive calls are correct (no copy-paste-modify errors) and that you test your functions with a few interesting examples... including a representation of the following program:

      ;; square : Number -> Number
      ;; Compute the square of the given number
      (define (square n)
        (* n n))
      (square (square (square (+ 1 1))))