Physical Attributes
Change over time of physical attributes can be represented as a time function.
Examples:
-
The trajectory of an airplane is represented as
Position: Time ®
Reals 3
where Position (t) = (x(t), y(t),
z(t)) is its position at time t Î
Time. Its position and velocity are represent by the function
f: Time ® Reals
6
where f(t) = (x(t), y(t), z(t),
vx(t), vy(t), vz(t)).
-
A weather map is a function
AirTemp: X ´
Y ® Temperature
where X ´ Y Ì
Reals2 is the area of interest and AirTemp(x,
y) is the temperature at location (x, y).