Hi there,

I need to find out within a loop whether a matrix is empty or not, e.g.:

<hansl>

nulldata 100
matrix test={}
loop i=1..20 -q
   catch inv(test)
   if $error
      print "WRONG"
   endif
endloop

<hansl>

Which is not working.

Without the loop "WRONG" is printed as in
 
<hansl>

nulldata 100
matrix test={}
catch inv(test)
if $error
   print "WRONG"
endif

<hansl>

Please help me with this problem.

Cheers
Leon