User Portlet
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| I want to do a discrete dispersion graph of a field E(k,t). Basically I have a function epa (E(x,t)) calculated at each xpa (several postions) at each time instant(tpa). Afterwards I calculate the discrete fourrier of xpa and tpa and epa. Then... |
| I am trying to install the package from this link [https://github.com/Masterxilo/ExportTable][1] I have tried to install it as a package, a program and all the things I can think off, but whenever I write |
| Yeah, I thought that the dimension was the number of columns. However can I make a Compile that returns a Table of ListPlots? I don't know how to make a huge number of ListPlots with a big number of points without it becoming too slow or... |
| I am confused. so you are saying my code should be something like this? Do[pos=Floor[x[[i]]/dx];rho[[pos]]=q/dx * Abs[FractionalPart[x[[i]]/dx], {i,nparticles}]; Do[pos=Ceiling[x[[i]]/dx];\[rho][[pos]]=q/dx *... |
| Hi In my code I have 2 For loops like that and will have a sow and reap algorthim (haven't done that part yet) to build a Table where I storage a list (very simillar to \[Rho]) in each iteration. And I think I will need a big number of iteratios. So... |
| Initial conditions a = 0.99; b = Sqrt[1 - a^2]; u = 10; eps = 8.854*10^(-12) f0[v_] = (a/Sqrt[Pi])*Exp[-v^2] + (b/Sqrt[Pi])*Exp[-(v - u)^2]; u1 = Log[((1 - a^2)/a^2)^(1/2)]/(2*u) + u/2; u2 = 3*u/2 - Log[((1 -... |
| dw(v,t)/dt =2g(v,t) w(t,v) g(t,v)= Pi/2 *(v^2)*d g0(v,t)/dt d go(v,t)/dt + d/dv[dw/dt *1/v^3)]=0 initial conditions f0=go(v,0) w(v,0)=0 |