Can someone point me to a posting where the idea behind the second derivative is somehow explained?
I did a search already, but could not find any detailed explaination.
I just found dougc's posting about how he calculates it, but I would like to understand the principle behind it and how one is supposed to use it.
Any information is greatly appreciated.
I did a search already, but could not find any detailed explaination.
I just found dougc's posting about how he calculates it, but I would like to understand the principle behind it and how one is supposed to use it.
Any information is greatly appreciated.