k and q are array languages in the APL tradition. APL is one the "ur programming languges". https://madhadron.com/programming/seven_ur_languages.html https://ma

k and q are array languages in the APL tradition. APL is one the "ur programming languges". https://madhadron.com/programming/seven_ur_languages.html https://madhadron.com/programming/seven_ur_languages.html Here's an open source implementation of k: https://codeberg.org/ngn/k/ https://codeberg.org/ngn/k/ kdb is a time-series database with deep integration to k. It is famously used in the financial industry.