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seen Jun 28 at 20:21

Jul
29
comment Examples of coupled 2nd time independent ODEs
Thanks Evgeny, this system is definitely something to look into.
Jul
27
comment Examples of coupled 2nd time independent ODEs
@MichaelBrown Indeed google is friendly, and I went to mathworld.wolfram.com/topics/OrdinaryDifferentialEquations.html to find some ODEs, but nothing really jumped out at me. And to avoid clicking on a 100 or so links for individual differential equations (since most of the examples they provide are not for coupled systems) I came to stack exchange.
Jul
27
comment Examples of coupled 2nd time independent ODEs
@Amzoti, Unfortunately no, I myself was thinking about a coupled spring-mass type systems, but then I realized that I needed to stay away from evolution type ODEs. Thanks.
Jul
27
asked Examples of coupled 2nd time independent ODEs
Jan
16
answered Behavior of differential equation as argument goes to zero
Jan
12
awarded  Supporter
Jan
12
comment Behavior of differential equation as argument goes to zero
Thanks a bunch. I have been doing my computations in Mathematica and I will try reproduce your result. I really wish you had got $z_2 \propto x^3$ since that this what they are saying in this paper: arxiv.org/pdf/gr-qc/0210102.pdf They mention this behavior in appendix A below equation A4, and the equation I wrote above is equation 20. I've made some obvious replacements in the variables. Thanks again.
Jan
12
comment Behavior of differential equation as argument goes to zero
@Pavel, Thanks for pointing out the error. I have fixed the equations. I do know that y2 = x^3, there should not be any other terms.
Jan
12
revised Behavior of differential equation as argument goes to zero
fixed typos in equations pointed out my Pavel.
Jan
11
asked Behavior of differential equation as argument goes to zero
Sep
3
awarded  Commentator
Sep
3
comment Help Understanding Spectral Method for solving Differential Equations
Quick question; How did get the expansion of (y+1)^2? Trial and error, software?
Sep
3
comment Help Understanding Spectral Method for solving Differential Equations
Thanks,this works out pretty nicely. I was worried about taking this approach b/c I did not seeing it working out this well. I will try and let you know what happens.
Sep
2
awarded  Student
Sep
1
asked Help Understanding Spectral Method for solving Differential Equations
Aug
21
comment Need help understanding shooting method
@RobertIsrael, Thanks indeed. Sorry about the added confusion there, I just had to make sure before I implement this tomorrow. Thanks.
Aug
21
comment Need help understanding shooting method
@J.M., no I have never actually heard of Brent's Method. I'll be sure to look it up. Thanks for the info.
Aug
21
comment Need help understanding shooting method
@J.M. What exactly is bracketing? I don't think I've come across that in my readings. A link would suffice, thanks.
Aug
21
comment Need help understanding shooting method
@Robert, Thanks. Ok, that does make sense. Not to be rude, but how sure are you,since you are saying it "could be the difference".
Aug
21
comment Need help understanding shooting method
Thanks Robert, this cools pretty interesting, I'm still trying to figure out how to implement this with my system, since I've never thought of, or since this method before.