Confirm bug in entermatrix?



Hello people --

  As I was moving my way up the long ascending path of knowledge, wisdom 
and logic, I could not but help noticing that the "entermatrix" command 
will not produce any visible results on my Maxima 5.9.0 (Windows).
  I would be thrilled to know if this is a bug, or is it just me and Mr. 
Gates?
  Even more amusing would be, if indeed there's a bug, if someone could 
kindly point out it's vicinity in the source code, so we could all 
become more enlightened. This would be great for learning Lisp and 
Computer Algebra.

  Thanks,

  Regs,

  Henry