equation parameter of
optimization_setup or via optimization_term). The reason
is that the hard constraints imposed by optimization_constraint
may make it more difficult for the optimizer to converge. See the discussion of the
selt and segt macros in the manual entry to optimization_setup.
&optimization_constraint
STRING quantity = NULL;
double lower = 0;
double upper = 0;
&end
quantity -- The quantity to be constrained, given as the
name of a quantity from among the optimization variables, optimization
covariables, and the ``final'' parameters (see the entry for
run_setup for the last of these). The optimization
(co)variables are referred to as
<element-name>.<parameter-name>, in all capital letters. Other
quantities, such as Twiss parameters or anything else but what is
listed just above, are not recognized. Expressions involving multiple
quantities are not supported.
lower, upper -- The lower and upper limits
allowed for the expression.