a tolerance group is the collection of solution elements
- quantities and characteristic expressions of the model - that have the
same degree of tolerance - order of precision
tolerance group of a quantity in a solution is specified
by the model
the binding of tolerance group to a quantity
can be postponed until the moment of instantiation
subtype
voltage is real tolerance
"maxtol_vol";
subtype
current is real tolerance
"maxtol_cur";
quantity
qvol: voltage;
quantity
qcur: current;
The derivatives or integrals of qvol inherit
the tolerance of qvol.
