I have thousands of triple integrals with very ugly integrands to run. Each of those computations takes about an hour in R on a mediocre machine. For uninteresting reasons, when I was initially coding this up, that's the language and machine I had to work with. But now my options are wide open. Does anyone know which languages are particularly fast for numerical integration? The truth is I know very little about computers, and am just now being acquainted with basic ideas like environments, compilers, etc. Luckily, I can get some of the intuition from math. But what I generally do best with are languages with less baggage. I've been told that C++ would be hard for me because there's a lot more than just typing in some code that I have to familiarize myself with. From what I've seen Fortran and Python are more likely to be useful for computations and that Python is a little slower, but prettier.