Certain types of array manipulation get crazy complicated with 1-based arrays, but remain simpler with 0-based arrays.

I did some numerical analysis programming at one point. I was working with algorithms to manipulate compressed, sparse matrices, written in both FORTRAN and C++.

The FORTRAN algorithms had a lot of a[i + j + k - 2], while the C++ had a[i + j + k], because the FORTRAN array was 1-based, while the C++ array was 0-based.