Mathematica has symbolic and infinite-precision addition, so you can't automatically take advantage of obvious compiled code.
Mathematica has symbolic and infinite-precision addition, so you can't automatically take advantage of obvious compiled code.
What? Arbitrary precision arithmetic implemented in a compiled language will be faster than the alternative. This is no great mystery. The same is true of essentially all low-level symbolic or numerical math algorithms. You need to get to a fairly high level before this stops being true.