Calculate natural logarithm

ROOT
1

Hello,
I want to calculate the natural logarithm from a couple of numbers. I thought that it is probably not included, so I tryed:

but this doesn’t work. I get this Error in my Terminal:

root [0] .x graphVV.C *** glibc detected *** free(): invalid next size (normal): 0x0a3bf828 ***
Is there an easy way to calculate it?

Thanks for your help!

2

Can you provide a script reproducing the problem?

Cheers,
Philippe.

3

Hi,
apart from the problem you encountered (which we would like to understand and solve, see Philippe’s reply) log() is the natural logarithm, see e.g. log(exp(1)).
Axel.