Recent content by jbrisby

I'm not sure that I have the grasp on the meaning of it, which is why I'm having the problem. I think that the components of the alternating tensor look like \begin{bmatrix} \epsilon_{111}A_{1,1} &\epsilon_{112}A_{1,2} &\epsilon_{113}A_{3,1} \\ \epsilon_{121}A_{1,2} &\epsilon_{122}A_{2,2}...

I edited the equation so maybe it'll make more sense. I'm not sure how to show that the cross product is transformed into the alternating tensor form.

Homework Statement A.) Show that \epsilon_{ijk}A_{k,j} represents the curl of vector A_k B.) Write the expression in indicial nottation: \triangledown \cdot \triangledown \times A 2. The attempt at a solution I'm hoping that if I can get help on part A.) it will shed light on...

Yeah it is the one that MATLAB uses but my prof wants me to write my own as a "learning opportunity"... heh. And no worries I know it's a pain debugging other people's code. I think my problem is something with choosing the correct difference at the end. difv and difp both give an 11x3 matrix...

Homework Statement I am trying to create a MATLAB program that propagates the solar system when given initial velocity and position. I have successfully implemented a Runge-Kutta 4th order integrator but would like to see the difference when moving to an adaptive time step method. I think my...