[F&O] 6.4 Functions on Numeric Values

The function descriptions contain

If the type of $arg is a type derived from one of the numeric types, 
the type of the return is the parent numeric type.

1) The formal semantics say that the input type is promoted. The 
descriptions in the F&O and in the FS should be aligned.

2) Instead of "the return" it should be "the return value" or "the 
result".

Till Westmann