I have a file consisting of

a b

b a

I want to read it into Maple and convert to a 2x2 matrix.  This will be trivial to most of you, but it isn't to me!  Thanks for some help.  .........Edgar

I would love to produce a fixed double cone but a movable plane so I could illustrate the various kinds of conic sections which are the intersection of the cone with the plane.  I would think this has been done, but I can't find and haven't been able to make much progress myself.  .......Edgar

Maple 13 help describes at least two ways to invoke classic maple, one, for example, through the Windows start - all programs -> Maple 13 .  But there sure is no classic Maple option there.  Where is Classic Maple?  ..........Edgar