Timing code can be tedious and strongly depends not only on personal hardware but also operating system and even tasks performed either by the user or in the background. Code execution times 𝛥𝑡 have been measured at the authors' workstations (specs see SI) using the timeit-module built into python and especially prepared scripts. No care has been taken to optimize performance on neither the conventional calculation methods nor the proposed NN algorithm to keep results close to application reality. The workstations (and authors) were idle during code timing performing neither numeric routines, literature research nor distractive web browsing or video calls in parallel to code execution timing.