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Error in Fig 8.2 #5

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lhupe opened this issue Nov 28, 2022 · 0 comments
Open

Error in Fig 8.2 #5

lhupe opened this issue Nov 28, 2022 · 0 comments
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accepted An addition/change that will be included in the next edition of the book. correction A correction for an existing statement/section figure Related with one or more figures

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@lhupe
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lhupe commented Nov 28, 2022

Figure 8.2b shows the boundary map of a mushroom billiard, with a chaotic and two regular trajectories and the regular island shaded in gray. However, the shaded area seems to be too small: one of the regular trajectories (the teal one) is outside the regular island in the cap.
Looking at the dimensions of this mushroom, the sin(θ) of the chaotic band in the cap should be within ±0.1 (the critical angle is sin(θ_c) = w/2R).

This error can't be reproduced with the corresponding script in this repo (8.3.jl) since the shading seems to be a later addition.

@Datseris Datseris added accepted An addition/change that will be included in the next edition of the book. correction A correction for an existing statement/section figure Related with one or more figures labels Dec 1, 2022
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Labels
accepted An addition/change that will be included in the next edition of the book. correction A correction for an existing statement/section figure Related with one or more figures
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