p73's topic is "6 Apply and map: applying functions to lists"
In part it says:
Since we're holding the data in a symbol called data, we could try this:
(add data)
value expected in function add : data
but no, this doesn't work, because add wants numbers to add, and neither does this:
(add data)
value expected in function add : data
The two examples above seem identical to me. What did I miss?
--
dukester
You didn't miss anything - but I missed out an apostrophe in the second example, showing that not evaluating the list didn't work either...
Actually I spotted that error the other day, while doing some proofreading (that HTML version, you know...). :-)
Thanks Dukester!
Quote from: "cormullion"
You didn't miss anything - but I missed out an apostrophe in the second example, showing that not evaluating the list didn't work either...
Actually I spotted that error the other day, while doing some proofreading (that HTML version, you know...). :-)
Thanks Dukester!
Sure! I should have guessed!! Thanks...