Applications: Longitudinal oscillating chains; PDEs

[Analog_Engine.git] / scripts / TP1 09.26 rope over table edge.DELACE

diff --git a/scripts/TP1 09.26 rope over table edge.DELACE b/scripts/TP1 09.26 rope over table edge.DELACE
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-# a rope slides frictionlessly down the edge of a table
-# x'' = g/l * x
-
-coefficient(1): 1 -> x0'   # initial speed
-coefficient(2): -1 -> -x0  # initial length of rope already over the edge of the table
-coefficient(3): g/l        # gravity constant (g) devided by the length of the rope (l)
-
-iintegrate (x'') -> -x':
-   IC: x0'
-iintegrate (-x') -> x:
-   IC: -x0
-x * g/l -> g/l*x = x''
-
-# note: positive x-axis in the direction of the falling rope (so down)
-#       for visualization, -x is displayed
-invert (x) -> -x # goes to output x