-
quantities are built from one or several sub-items of float
type in order to approximate continuous values .
-
quantities can be declared everywhere where a signal can
be declared excepted in a package.
|
entity
simple is
port
(quantity qi: in
real;quantity qo:out
real);
end
simple;
|
For each quantity Q:
-
Q'Dot indicates the quantity of the same type that Q that
represents the derivative of Q in respect to time.
-
Q'Integ indicates a quantity of the same type that Q that
represents the integral of Q over time, from time 0.0 to current instant.
For derivatives of superior orders, it
suffices to write: Q'Dot'Dot (order 2) and for integrals Q'Integ'Integ
(integral order 2).
