Recent content by gomez

Vz is just the velocity in the z direction, It's nothing more than my variable. Vz changed with respect to r. Vz(r)''+1/r*Vz(r)' = k

hi, I have this ODE and I need to obtain the general and the particular solution, this is the ODE Vz''+1/r*Vz'= k where k is a constant thanks

thanx man, you are really good at this. P.S: I don't really have to take the exponential of that, I will just take the imaginary part and represent it as my solution, exp(imaginary). P.S.2: people in my lab are still laughing about your "simple stuff" comment thanks again

Again, my specific question is about the exponential fuction, my solution is exp(root square(4+i)), how can I break this expression into a real part and an imaginary part. is there any property of the exponential function with complex numers that I'm missing?. thanks pd: the number 4 in my...

The ODE is f(r)'' + 1/R* f'(r) - (i+1/r^2)f(r)=0 ; and my boundary conditions are F(r=r1)=1 and F(r=r2) =0. I solved this ODE and I found my two constants but this ODE comes from a PDE which boundary condition is sine(t) whis is the imaginary part of exp(it). my specific question is how can I...

Hi, I am solving a second order ODE. the result I got is an exponential to the power of a real and an imaginary part, both of them inside a square root. I need to brake this result into an imaginary and a real part because in this particular case just the imaginary part of the solution is my...