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Typically use of variables is as follows:

program variable meaning
element global element number.
max_element highest global element number.
inod global node number.
max_node highest global node number.
inol element node number.
nnol the number of element nodes.
ipuknwn primary unknown number.
npuknwn the number of primary unknowns.
iuknwn unknown number.
nuknwn the number of unknowns.

tochnog 2001-09-02