YouTube version: https://youtu.be/6GL4U4pkWeI Imke looks at M code like Neo sees the "M"atrix.   She is one of those folks that just amazes me as to what is possible inside Power Query and the M language.   Imke has made a huge contribution already to the various tech community forums and continues to do so by now developing some amazing tools to make all our Power BI development lives easier.   https://www.thebiccountant.com/about/   Imke's favourite tool: Power BI Cleaner Gen2 now covers Analysis Services Models as well (thebiccountant.com) Most popular article:  Easy Profit and Loss and account scheme reports DAX PowerBI Pivot (thebiccountant.com)   Advanced algorithms: Goal seek algorithm: Non-linear Break-Even Analysis in PowerBI – The BIccountant Matrix Inversion (MINVERSE Excel-function): Returns the inverse matrix for a matrix stored in an array. As a bonus, its determinant is returned in the metadata. (github.com)   Ben Gribaudo Series Power Query M Primer (part 1): Introduction, Simple Expressions & let | Ben Gribaudo