Has anyone here tried to show an ArrayPlot or MatrixPlot of a small numeric 2D array such that the values are shown inside the squares? I.e. whatever color function is used allows to figure out the array at a glance but more accurate information is also available for closer inspection. Quick search didn't produce any results on this site.
What is the meaning of K[1] here (i.imgur.com/IKjsQYX.png)? It seems to be used as an integer iteration variable (as n would normally be used), but is the 1 being treated as an input to a function K, or does it have any similar significance?
I've noticed an increase in down-votes recently. Most of these are not accompanied by any explanation of why the questions or answers have been down-voted.
A lot of users provide helpful comments (without down-voting) suggesting how questions or answers could be improved. An unexplained down-vo...