p73 Introduction to newLISP

Started by dukester, August 26, 2007, 10:14:21 AM

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dukester

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
duke

cormullion

#1
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!

dukester

#2
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...
duke