16 reputation
3
bio website
location
age
visits member for 3 years, 9 months
seen Mar 25 at 18:23

Jun
8
awarded  Popular Question
Oct
19
comment Numerically Solving a Second Order Nonlinear ODE
Okay, could I use an approximation?
Oct
19
revised Numerically Solving a Second Order Nonlinear ODE
deleted 86 characters in body
Oct
19
comment Numerically Solving a Second Order Nonlinear ODE
This is from an old research paper on Inertial Electrostatic Confinement, in English its a large vacuum tank with hot plasma inside. This equation describes the normalized potential of the plasma at different radii from the center of this spherical tank.
Oct
17
awarded  Student
Oct
16
comment Numerically Solving a Second Order Nonlinear ODE
Okay in that case I will end up with: g'(R)+(2/R)g(R)=(.7/R)((1/sqrt(h))-((0.3)/sqrt(1-h))), g=h' by letting f=h and f'=g. How will this effect the one boundary condition f(1)=1 I knew before the substitution?
Oct
16
revised Numerically Solving a Second Order Nonlinear ODE
deleted 18 characters in body
Oct
16
awarded  Editor
Oct
16
comment Numerically Solving a Second Order Nonlinear ODE
Well I am not able to post the graph yet. I don't enough reputation points (i need 10). I might post a link later.
Oct
16
revised Numerically Solving a Second Order Nonlinear ODE
added 212 characters in body
Oct
16
comment Numerically Solving a Second Order Nonlinear ODE
I am trying to replicate a graph of the solution from an old paper. I can show a picture of what the graph looks like but I am not sure how. Anyway the solution is for R between 0 and 1. At f(1)=1 at least from what the graphs shows. My other boundary condition is actually wrong (I will edit the main post), but f seems to be approaching positive infinity as R approached 0.
Oct
16
asked Numerically Solving a Second Order Nonlinear ODE