Referenced from lesson Solving Word Problems

We’ve provided contracts and purpose statements to describe two different functions. Write examples for each of those functions.

Directions: upside-down

Contract and Purpose Statement

Every contract has three parts…​

; upside-down: Image->Image

; Consumes an image, and flips it upside down by rotating it 180 degrees.

Examples

Write some examples, then circle and label what changes…​

(EXAMPLE (___________ _______________________________) _____________________________________________)

(EXAMPLE (___________ __________________________) ________________________________________)

Definition

Write the definition, giving variable names to all your input values…​

(define (___________ ____)

__________________)

Directions: product-squared

Contract and Purpose Statement

Every contract has three parts…​

; product-squared: Number Number->Number

; Consumes two numbers and squares their product

Examples

Write some examples, then circle and label what changes…​

(EXAMPLE (_______________ ____)______________)

(EXAMPLE (_______________ ______)________________)

Definition

Write the definition, giving variable names to all your input values…​

(define (_______________ ____)

_______________)

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