Recent content by RH10

Hi All, Assuming Stokes drag, wikipedia suggests this problem (the solution for v(t) ) has an analytical solution. Is this right? http://en.wikipedia.org/wiki/Drag_%28physics%29#Very_low_Reynolds_numbers.E2.80.94Stokes.27_drag Could someone point me to the derivation online? Or a...

Hi All, I’m implementing a code to solve the equation of motion using the 4-step Adams-Bashforth method. Here’s my section of code that does this: a=F/m; upnew= up + delta *( (55/24)*a - (59/24)*am1 +(37/24)*am2 - (3/8)*am3 )...

No, the problem is a 2-D one. That is I have a square matrix (n x n x 1) which represents my data set and the challenge is to interpolate in it. Nearest neighbour is obviously no sweat. Extracting part of the data set and using bilinear interpolation wasn't too hard, but I'm reading about...

Hi Chiro, Thanks for your links, reading about B-Spines is very interesting. Much of the intel website went over my head unfortunately, so can you point me to the basic equations for this? How do I go about actually interpolating in a square matrix? Thanks,

Hi All, I'm working on coding some 2-D interpolation techniques. With wikikepdia's help, I've managed blinear interpolation. What other techniques are out there? Please tell me a little about how your favourite technique works. I've read about higher order methods, using more...

I'm trying to write a code to implement he backwards Euler method to integrate the equation of motion. The sticking point seems to be that the acceleration is due to drag, and thus is dependent on the new position and velocity. I understand the method to be: v_{i+1}=v_{i}+a_{i+1}δ...