list field extraction
[x,...]=getfield(i,l)
:x matrix of any possible types : :l list, tlist or mlist variable : :i field index, see extraction for more details. :
This function is an equivalent of [x,...]=l(i) syntax for field extraction with the only difference that it also applies to mlist objects.
l=`list`_(1,'qwerw',%s)
[a,b]=getfield([3 2],l)
a=`hypermat`_([2,2,2],`rand`_(1:2^3));// hypermatrices are coded using mlists
a(1) // the a(1,1,1) entry
getfield(1,a) // the mlist first field