Tag Archives: Logical values

Advanced use of SUMPRODUCT for multi-conditional SUM In the previous posts, we talked about the basic of SUMPRODUCT, the behaviors of logical  values (i.e. TRUE/FALSE) when they are put into basic mathematics operations.  These set the foundation to understand the … Continue reading →

Have you heard about Logic Gate?  I learned logic gate in high school physics.  Decades ago… so don’t expect I can remember what it is.  😛 Having said that, I do remember the fundamental concept about AND gate and OR gate, … Continue reading →