thanks! yeah of course 3.8-3.9 is the steady state. but it's unstable and leading to the limit cycle unless you pick all the initial values equal to each other.
yes, i am supposed to critique a few articles, in one of them this model was used. and i need to propose something new for the...
thanks. i will run it more on xpp later. in my class we use "nonlinear dynamics&chaos" by strogatz. there is a chapter on lorenz equations and following chapters on other 3d systems. we'll start those next week but they won't be on the exam, and I'm not sure whether i'll continue to study...
yes, that is it. if you start them all at 1, you'll get all of them to be 3.9 or something. sorry, i don't model them in 3-d, i just meant to say that i don't even know anything about 3-d equations, i only learned about 2-d(i assume 3-d or 6-d is same thing in terms of theory).
thanks! of course the part where they converge to the steady state no longer confuses me, because the equations are the same. but i am still very much looking for strategies/explanations for which init. conditions it takes a lot of periods and for which it takes few, to reach the limit cycle...
Help. If anybody knows them beyond introductory level...
i have a higher order system with a single fixed point. i chose such parameters that the fixed point is unstable. so it should either oscillate to infinity, or in this case it actually has a limit cycle. when running this system on the...
i think in MATLAB you could try using the function find(blabla), i am not sure how to use it.
or you could try the for loops for example you are given X[m,n] and Y[m,n] and you want to plot only those values of Y for which corresponding X is <x1 & >x2:
z=[];
for i=1:m
for j=1:n
if...
up. also i wrote a program for "count the probability that n tosses will give k heads" , based on doing many random trials. that program did compile. but i found it to be rather slow. i.e. the most it would do was 100k trials.
after the current problem compiles, i'll try to do monte carlo...
I tried to write a function that would count all possible combinations that 4 couples could sit at a table assuming no man can sit next to his wife or next to another man. and 1wife and 1 husband sit at fixed positions. my problem doesn't compile and it says i either have too many or too few...
i need to solve an equation of the form (5) from this webpage http://chaos.phy.ohiou.edu/~thomas/chaos/mackey-glass.html
first it asks to "derive the corresponding eigenvalue equation"- i presume they mean to derive (6)? if so, i don't know how they get it.
and then they ask for something...
i think men are on average better than women in pretty much everything. But in some areas, including intelligence, looks, virtue, women have a few that really excell, even though the average is still low. i think women can't compete with men only in things like survival in the wilderness or war.
Or it's possible to acquire it?
I noticed that many professors sound as clear as writers, that is if you listen to them, you can immediately say they're intellectuals. Of course they read books for leisure... Of course if a layman person reads the same books, he can discuss them with...
outsider, as was explained above, it's not necessary to discuss complicated ideas, it's how you discuss them that counts! if you are consise, tactful, and logical, then people notice. and if you are angry,wordy, annoying, cynical, brute, people also notice it! so I'm trying to get rid of the...
The only useful, sincere advice i got from a writer: read Sartre. I already picked out some books that i'll be reading for the next year or so, none of them are as heavy as Sartre, the closest is probably "Of Human Bondage". But many books may be even considered "children's books". Right now...