size_ind
The return value has prototype
int n
an is the size of the vector
ax
in the function constructor; i.e.,
the number of independent variables.
size_dep
The return value has prototype
int m
an is the size of the vector
ay
in the function constructor; i.e.,
the number of dependent variables.
size_var
The return value has prototype
int v
an is the number of variables in the function.
This includes the independent variables, dependent variables,
and any variables that are used to compute the dependent variables
from the independent variables.
size_op
The return value has prototype
int p
an is the number of atomic operations that are used to express
the dependent variables as a function of the independent variables.