(Original post by Big-Daddy)
I have a very large and complex algebraic expression that I've been looking around to see if I can have rearranged in a simple way. It has variables A, B, C, D, E, F, j and k (8 in total).
WolframAlpha is incapable of rearranging it and simply times out, so it should be obvious that human attempts to do so are likely to be short-lived. However, I think Mathematica should reasonably be able to give it a shot.
The equation is:
A=((((((((B*(((((C^2)+(4*F))^(0. 5))+C)/2))-((j/k)*(D*(((((E^2)+(4*F))^(0.5))+E)/2))))/(B+D)))^2)+(4*F))^(0.5))+((((B*( ((((C^2)+(4*F))^(0.5))+C)/2))-((j/k)*(D*(((((E^2)+(4*F))^(0.5))+E)/2))))/(B+D))))/2
Yes, I'm aware that this looks like an unintelligible mess, but I'm not asking for human help in rearranging it - in fact, I'm mainly posting it so you get an idea of its complexity. If someone does want to do it for me, they can be my guest, but I'd really prefer to be taught the method.
Basically, what I would like is for someone to drop me a quick line explaining how Mathematica, or any other adequate computer program, could be used to rearrange a large equation such this (i.e. solve for B, C, D, E, F, j and k, one by one). The normal "[Solve ...,B]" function in Mathematica offers no output at all (just a blank ""), but I would be grateful if someone can point me to a function that may be able to.
If this is in the wrong forum, please move it (moderator).
I thought it might belong more in the computer science forum, but I know little about the field in general and it struck me that algebraic rearranging belongs here instead.
Thanks for any help.