are there a bug? https://github.com/mcximing/sort-cpp/blob/424307b57267ea0a808244ac4ee61652c161e28b/sort-c%2B%2B/KalmanTracker.cpp#L89 s*r may be negative, so sqrt(s*r) get nan
are there a bug?
sort-cpp/sort-c++/KalmanTracker.cpp
Line 89 in 424307b
sr may be negative, so sqrt(sr) get nan