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- # This example simulates a bead sliding on a smooth circular wire. The
- # output displays the height of the bead as a function of time.
- #
- # You may run this example by doing:
- #
- # ode < bead.ode | graph -T X -C
- #
- # or alternatively, to get a real-time plot,
- #
- # ode < bead.ode | graph -T X -C -x 0 5 -y 0 2.5
- #
-
- a = 1 # radius of circular wire
- g = 10 # acceleration due to gravity
- w = 10 # angular velocity of circular wire
-
- the' = vthe
- vthe' = (w^2)*sin(the)*cos(the) - (g/a)*sin(the)
- the = 0.1
- vthe = 0
-
- print t, the
- step 0,5
-