ln, log, log2? **Reporter**: [David Li](https://issues.apache.org/jira/browse/ARROW-13096) / @lidavidm **Assignee**: [David Li](https://issues.apache.org/jira/browse/ARROW-13096) / @lidavidm #### Related issues: - [[C++] Arithmetic kernels for numeric arrays](https://github.com/apache/arrow/issues/28490) (is a child of) - [[C++] Implement logN compute function](https://github.com/apache/arrow/issues/29020) (is related to) - [[R] Bindings for log and trig functions](https://github.com/apache/arrow/issues/28959) (is depended upon by) #### PRs and other links: - [GitHub Pull Request #10567](https://github.com/apache/arrow/pull/10567) <sub>**Note**: *This issue was originally created as [ARROW-13096](https://issues.apache.org/jira/browse/ARROW-13096). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*</sub>