I don’t do numeric methods, but I occasionally solve performance-sensitive CPU-bound problems, in areas like CAD/CAM, 3D graphics, and GIS. An average C++ CPU-

I don’t do numeric methods, but I occasionally solve performance-sensitive CPU-bound problems, in areas like CAD/CAM, 3D graphics, and GIS. An average C++ CPU-bound code isn’t radically faster compared to e.g. C#. I suppose that’s true for other higher-level compiled languages. But the good thing about C++, after I’ve profiled which parts of the algorithm take most time, I can gradually replace my average C++ code with SSE or AVX intrinsics. Sure it’s harder to read, write and understand, but if done right, on modern hardware it can become several times faster.