InfluxDB: How to Do Joins, Math Across Measurements' by Anais Dotis-Georgiou discusses two use cases for performing math across measurements in InfluxDB using the new query language and engine Flux. The first example calculates the batch size of lines written to the database per request, while the second monitors the efficiency of a heat exchanger over time. The article provides detailed walkthroughs and tips for working with Flux, highlighting its capabilities and potential applications.