On Fri, Oct 30, 2015 at 8:20 AM, Roelof Wobben wrote:
Im self studing Haskell with the Craft o ffunctional programmimg of Hutton.
Now I see two exercises that I do not understand what is really the purpose here.
Maybe a slight rewording of the instructions would help? (It helped me!) The two exercises are :
4.21 Given a function f of type Integer -> Integer give a recursive definition of a function of type Integer -> Integer which on input n returns the maximum of the values f 0, f 1, ..., f n. [...]
Given: f :: Integer -> Integer Define: g :: Integer -> Integer g n = ... such that g is defined recursively. g n returns the maximum of f 0, f 1, ..., f n. 4.22 Given a function f of type Integer -> Integer give a recursive
definition of a function of type Integer -> Bool which on input n returns True if one or more of the values f 0, f 1, ..., f n is zero and False otherwise.
Try a similar rewording as above. Regards, Sean