We’ve provided contracts and purpose statements to describe two 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 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: 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…
examples:
_________________ (____)__ is ______________
_________________ (______)__ is ________________
end
Definition |
Write the definition, giving variable names to all your input values…
fun _______________(____):
________________
end
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
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