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function whos()
// Copyright INRIA
[nams,vol]=who('get');
//display defined variable in a long form
typnames=['constant matrix';
'polynomial'
' '
'boolean'
'sparse'
'boolean sparse'
' '
' '
' '
'string'
'function'
' '
'compiled function'
'library'
'list'
'tlist']
n=size(nams,1)
write(%io(2),part('Name',1:25)+part('Type',1:20)+part('Size',1:20)+part('Bytes',1:13))
write(%io(2),' ')
for k=1:n
sz=' '
execstr('typ=type('+nams(k)+')')
if typ<=10 then execstr('sz=size('+nams(k)+');'),end
if typ<=16 then
typn=typnames(typ)
if typ==16 then
execstr('tt='+nams(k)+'(1)')
select tt(1)
case 'r' then
typn='rational';
execstr('sz=size('+nams(k)+'(2)+)')
case 'lss' then
typn='state-space'
execstr('sz=size('+nams(k)+'(''D'')+)')
else
typn=tt
execstr('sz=size('+nams(k)+')')
end
end
else
typn='?'
end
siz=strcat(string(sz),' by ')
write(%io(2),part(nams(k),1:25)+part(typn,1:20)+part(siz,1:20)+part(string(vol(k)*8),1:13))
end
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