Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Typos in First Edition #2

Open
Datseris opened this issue Apr 11, 2022 · 15 comments
Open

Typos in First Edition #2

Datseris opened this issue Apr 11, 2022 · 15 comments
Labels
accepted An addition/change that will be included in the next edition of the book. typo A typo found in the book that will be corrected in the next edition.

Comments

@Datseris
Copy link
Member

Please post here all typos you have found in the first edition of the book.

@Datseris
Copy link
Member Author

Chapter 7, exercise 7.15 has a missing }.

@Datseris Datseris added accepted An addition/change that will be included in the next edition of the book. typo A typo found in the book that will be corrected in the next edition. labels Apr 11, 2022
@Datseris Datseris pinned this issue Apr 11, 2022
@Datseris
Copy link
Member Author

In chapter 5, section 5.2, second paragraph, we write “because in all the ways we will define P_k…”. Change P_k to P_m

@Datseris
Copy link
Member Author

Datseris commented Jun 2, 2022

In chapter 12, section 12.2.2, the inline code basin_fractions must be basins_fractions.

@Datseris
Copy link
Member Author

Datseris commented Jun 2, 2022

The code snippet of Figure 5.4 is outdated, and the code now needs to initialize an AttractorViaRecurrences.

@Datseris
Copy link
Member Author

Page 171, final paragraph of further reading, "discussed in this chapters". must be "chapter", singular.

@Datseris
Copy link
Member Author

Reference 240 [Bonabeaua, PNAS, Agent based modelling] has some wierd (Supplement 3) parenthesis.

@Datseris
Copy link
Member Author

code snippet 9.1 in page 143: the assignment a = a_vec[ia] at the end is unecessary.

@Datseris
Copy link
Member Author

page 128, third paragraph, g(x(t) misses a closing parenthesis.

@Datseris
Copy link
Member Author

Page 92, 4th paragraph, second line: "set original A" must become "original set A"

@lhupe
Copy link

lhupe commented Jan 31, 2023

Equation 11.15 on page 183: the second function argument $\frac{u(\mathbf{x}, t) - \bar{u})}{σ_u}$ has a misplaced closing parenthesis

@lhupe
Copy link

lhupe commented Mar 2, 2023

The index on p. 236 has entries for "Poincaé maps" and "Principle components"

@lhupe
Copy link

lhupe commented Mar 8, 2023

the equation $λ_i = \frac{1}{N,Δt} \sum_i \log(R_{ii}(t = iΔt))$
in the explanation of the Lyapunov spectrum algorithm (page 42, last paragraph) uses the symbol $i$ twice, once as the index of the Lyapunov exponent and as the summation index for the time average.

@Datseris
Copy link
Member Author

Chapter 2, section 2.2.4 on excitable systems. In the last paragraph, and the figure, when the bistability occurs in the FitzHugh Nagumo, we say that the nullclines intersect two times, while it is obvious that they intersect three times, but only two of the intersections are stable fixed points, and the other one is an unstable one.

@Doublonmousse
Copy link

Doublonmousse commented Nov 13, 2023

Wrong formula for the volume of k-dimensional ellipsoid in Appendix A.

image

$$ V(t) = \frac{4}{3} \pi \prod_{i=1}^k (\varepsilon \exp(\lambda_i t)) $$

The multiplicative factor is only correct for $k=3$ (for $t=0$ we would find the usual volume for a sphere of radius $\varepsilon$ for $k=3$, but for $k=2$ we end up with $\frac{4 \pi}{3} \varepsilon^2$ for the volume/measure of a circle of radius $\varepsilon$ instead of $\pi \varepsilon^2$

@Doublonmousse
Copy link

Equation (2.2) has the wrong t. It should be
$$\frac{d T}{d \tilde{t}}$$
and not
$$\frac{d T}{d t}$$
with the new $\tilde{t}$ that's homogeneous to K, and not the original $t$.

The equation
$$4c/S_0 \approx 0.01 \text{years}$$
is also not dimensionally correct, the correct one should be
$$4c \Delta \tilde{t}/S_0 \approx 0.01 \text{years}$$
with $\Delta \tilde{t} = 1K$ corresponding to a change of 1 unit of $\tilde{t}$, which is homogeneous to K.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
accepted An addition/change that will be included in the next edition of the book. typo A typo found in the book that will be corrected in the next edition.
Projects
None yet
Development

No branches or pull requests

3 participants