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1 # Damped_Oscillator

2 # phi'' = -(S*phi + D/m*phi')

4 coefficient.1(-1) -> -phi0 # Initial Amplitude

5 coefficient.3 -> S # SpringForce

6 coefficient.4 -> D/m # Damping linear to speed

8 iintegrate phi'' -> -phi'

9 invert -phi' -> phi'

10 cmultiply phi', D/m -> D/m*phi'

12 iintegrate -phi' -> phi

13 IC: -phi0

14 cmultiply S, phi -> S*phi

16 isum 10:S*phi, D/m*phi' -> -(Sphi+D/mphi')

17 assign -(Sphi+D/mphi') -> phi''

19 output(y) -> out.y