Juan M. Duran
Wed, 27 Feb 2002 11:09:18 -0300 (BRT)

I got a function with type :: IO [[Double]], and what I want is write this
output in a file, how can I do it... I mean, I cannot doit by just using

And one more thing: the Glasglow compiler doesn let me compile because I use
 the function readFloat (declare in the Prelude of Hugs 98), but Hugs lets
 me, why? How can I solve it?