Excel question: I need a row number to automatically increment as I copy a formula horizontally across columns. Sample spreadsheet downloadable here, or viewable as a Google Doc here. Further details inside. [more inside]
posted by Conrad Cornelius o'Donald o'Dell on Nov 7, 2009 - 12 answers

I want to calculate the mean of a matrix, but I don't want a value, I want co-ordinates. The following math question has lots of terminology that I'm not qualified to use i.e. most of it is wrong. I hope you can see through this and help me. I will be using the words matrix, mean and transformation without fully understanding them. For this I apologize. [more inside]
posted by handybitesize on Jun 8, 2009 - 6 answers

Maximizing a function over orthogonal matrices, or: solving polynomial order 2 systems. Help me out or point me to a better forum / listhost. [more inside]
posted by a robot made out of meat on Oct 26, 2008 - 15 answers

What is this logical/matrix/algorithm symbol? [more inside]
posted by i love cheese on Nov 2, 2007 - 12 answers