@dan815 are you there? I have a pde problem

Question

usukidoll · Answer

@ganeshie8 are you there and if you so do you know pdes?

usukidoll · Answer

what do you want? ^

usukidoll · Answer

then do your stats ^

usukidoll · Answer

pfttt

usukidoll · Answer

@wio know any pdes? concerning Lorentz Transformation and change of variables

usukidoll · Answer

no

usukidoll · Answer

you started it first

usukidoll · Answer

hmmm @thomaster is here too...at this hour?

usukidoll · Answer

attachment

usukidoll · Answer

top one letter b... I think I might have just gotten it.. does it have to do with the Jacobian determinant thing @ganeshie8

inkyvoyd · Answer

isn't this ding dinger's equation

usukidoll · Answer

-.-

usukidoll · Answer

invertible change of variables like going from x -> y and y -> x vice versa... but I don't know if I should use Jacobian on this... I did talk to Kainui about it 
[11/17/2014 8:07:02 PM] Kainui: given the definitions and stuff shown
[11/17/2014 8:07:35 PM] Kainui: and apparently use the identitiy cosh^2w-sinh^2w=1
[11/17/2014 8:08:33 PM] Kainui: So you're probably going to get your stuff multiplied by this and you factor it out leaving you with 1

ganeshie8 · Answer

J = 1 so the scaling factor is 1, what does that tell you about "invertible change of variables" ?

ganeshie8 · Answer

does that mean the "thing" is invariant under this change of variables  ?

ganeshie8 · Answer

idk this looks hard to me

usukidoll · Answer

hmmm I think it is.. but it's like we have the same results..only with different bars.

usukidoll · Answer

well as long as I attempt parts of it, I can get partial credit :P

usukidoll · Answer

I need all the partial credit I can get so I won't have to do corrections on this crap. oops language. but yeah pdes suck

usukidoll · Answer

but do you know what Kainui was talking about when he said use the identity...there is a 1 left over?

usukidoll · Answer

@wio help us poor souls D:

ganeshie8 · Answer

no clue sry

usukidoll · Answer

@Miracrown

usukidoll · Answer

I wanna use this to do the problem... Jacobianz http://math.ucsd.edu/~lni/math20e/l12.pdf

anonymous · Answer

Honestly, I'm not sure how to do this problem.

usukidoll · Answer

:/

usukidoll · Answer

where is Kainui when you need himmmmmmmm X(!

usukidoll · Answer

ah! @Alchemista can you help us with showing invertible change of variables

usukidoll · Answer

@Callisto ?

usukidoll · Answer

mmm maybe I can try and grasp it ... I think.. I still have 2 and a half problems left before I am fully done with this x.x

sidsiddhartha · Answer

i can give it a try ? which one u wanna solve ?

usukidoll · Answer

thanks  for the help. it was 2b the one with the invertible change of variables.