I have a list with about 8000 pairs of values like
List ={{0,1},{1.2,4},{1.6,8},{2.11111,10},...}
and I want to have a list with the derivate of the function using DerivativeFilter[ ] upon the entries. To do so, i want to extract just the second value of the list, i.e. obtain
List2= {1,4,8,10,....}
I didnt find any solution to my problem to do that easily.
Also: Is there an easier way to gain the derivate? And another question: How could I act with an operation only on the first or second variable of the pair, for example
List3={{0,f[1]},{1.f[2,4]},{1.6,f[8]},{2.11111,f[10]},...}
Thanks for the help!
List
is a built-in command - don't use it as a name for user-defined variables! All MMA built-in commands are upper case (there's alsoN
andD
and many more). It's safest to always use lower case user-defined names. $\endgroup$