HP 42S, DM 42 Integral

[lrdheat]

Wondering...would the DM 42 be running the same integration algorithm as the 42S? I’m curious as to if the zero spiral phenomenon is due to a different platform or algorithm. It appears as if when the emphasis of what had been a large HP calculator group was focused more on an engineering audience, a lot of thought went into how each function performed over a full range of scenarios that might be encountered. The DM 42 is very beautiful achievement, but perhaps did not have the luxury of having a large team to optimize all of the functions that are offered. Happy to have both.