1TODO before 1.0
2===============
3
4- Check portability:
5        - sqrt(-1), x/0.0 etc. -->  crash, or NaN/Inf?
6        - Are functions like log2 and cbrt available everywhere, etc.?
7
8- Take a look at the localisation/translation stuff.
9
10
11Beyond 1.0:
12===========
13
14- Better precision (e.g. using mpfr)
15
16
17- More functions? (Hyperbolics? Gamma?)
18        - easy to add, as long as they are implemented in the C math
19          library.
20        - Add support for multi argument functions?
21