interface.node.extra
Syntax
Get/set the value stored in the ith extra variable array of interface node in.
a - value stored in extra variable slot i for interface node in
a - value to store in extra variable slot for interface in
in - a pointer to the interface node
i - extra variable index to use. If not provided, index 1 is assumed.
interface.node.disp.shear
interface.node.find
9.2.16