Question: I am programming in scheme ( define ( sum n ) ( if ( > = n 0 ) ( if ( = n 0
I am programming in scheme
define sum n
if n
if n
n sum n
define ReverseEm elems
if null elems
append ReverseEm cdr elemslist car elems
define nonNegative num
if num
num
define JustDoIt lst
let positivesum sum map nonNegative lst
ReverseEm list positivesum
When I do JustDoIt it says REAL expected, why, how do I fix it
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