Referenced from lesson Solving Word Problems

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

Directions: half-image

Contract and Purpose Statement

Every contract has three parts…​

# half-image::String->Image

# Consumes the url for an image, and produces that image scaled to half its size.

Examples

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

examples:

____________ (___________________________________) is ______________________________________________________________

____________ (____________________________________) is _______________________________________________________________

end

Definition

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

fun __________(___):

____________________________

end

Directions: triple

Contract and Purpose Statement

Every contract has three parts…​

# triple::Number->Number

# Consumes a Number and triples it.

Examples

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

examples:

________ (_) is______

________ (__) is_______

end

Definition

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

fun ______(___):

_________________

end

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