# Ln x dx

by PrudensOptimus
Tags: None
 P: 45 If you don't feel like doing it, you can always use: The Integrator It gives the answer: $$-x + x \ln x$$
 P: 333 Hmm, didn't consider that. I'm not sure there'd be a closed form expression for $\int ln[x] dx$ where $[x]$ is the next greatest integer function. It'd be easy enough to get a numerical answer if the interval was specified though.