>>>>> "N Hur" == N Hur <mapnh@maths.bath.ac.uk> writes:

    N Hur> Thank you.

    N Hur> But running your code for example,

    N Hur> 	root_floor 3 (Int 2) (* menaing third_root of 2 *);;
	
    N Hur> gives 1, while what we want is 1.2599210498 ...

Sorry, I misunderstood your question. I though you where interested in
computing the nth root of a big_num. If you are interested in
computing the nth root of a float, I really don't understand why you
are using big nums. 

An algorithm for computing the nth root of a float is easy :

let nth_root n x = exp (log(x)/.(float_of_int n));;

Hope this helps. If it doesn't answer to your question, please explain
your problem more precisely.

- Claude



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