[daip] array precision

[Eric Greisen]

P.E. Robinson writes:
 > Designated Aips,
 > 
 > I've hit a bit of a roadblock while writing an AIPS procedure to do
 > factorial calculations.  It seems arrays declared in a procedure are in
 > floating precision, which cannot handle the stupidly large numbers that
 > the factorial loop wants to give me.  I would like to declare my arrays as
 > double precision to handle the big numbers...but haven't figured out how
 > to do this yet...
 > 
 > The Cookbook and APROPO weren't forthcoming on this, which is why I'm
 > bugging you.  Any ideas?
 > 
All POPS adverbs are single-precision floating-point and there is
nothing (reasonable) that we can do about that.  We do sometimes add 2
adverbs together to form a value, allowing greater precision but that
does not help in procedures.

Eric Greisen