This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Natural logarithm integral.svg natural logarithm expressed as integral of Logpolex svg UTC Logpolex svg Wojciech Mua derivative work Jakob scholbach talk natural logarithm product formula proven geometrically svg changed the notation bit Jakob scholbach Logpolex svg Hyperbola rational function Logarithm