Directions: Write a function called line-length, which takes in two numbers and returns the positive difference between them. It should always subtract the smaller number from the bigger one. If they are equal, it should return zero.
Contract and Purpose Statement |
Every contract has three parts…
___________::______________->______
________________________________________________________________________
Examples |
Write some examples, then circle and label what changes…
examples:
line-length (10, 5) is 10 - 5
line-length (2, 8) is 8 - 2
end
Definition |
Write the definition, giving variable names to all your input values…
fun ___________(____):
___________
___________
end
end
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
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