2 Sep
2010
2 Sep
'10
8:49 a.m.
Example 2 Prelude> let fac n = if n == 0 then 1 else n * fac (n-1) How does it know to stop ? and why does fac 2.5 hang? thanks Eoin -- -- Eoin C. Bairéad Dublin, Ireland Áth Cliath, Éire