Since about twenty years, I use a private fixed point arithmetic package which I would like to replace by something newer and better. There is the equally old (but good)
fp package, but LaTeX3 is rising and I found a many questions and answers where LaTeX3 was recommended:
- Floating point calculations in LaTeX?
- What is the best practice for arithmetic operations specially for package/class writing?
- How to format expl3 floating point number using siunitx
- Replacing dots with comma in `fp` result
Unfortunately, I was not able to find the documentation of the arithmetic functions of LaTeX3. One of the above linked texts mentions a
l3fp package which I could not find. I scanned through the
expl3 documentation, but I also could not find the arithmetic functions documented. Googling gives a lot of examples, but where is the documentation?
If there is one, please, let me know.
Or is it not officially documented, because it's currently not seen as stable? The
xparse package e.g. is declared stable and is documented. Is it too early for the arithmetic functions?