Re: transposing an equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg26295] Re: transposing an equation*From*: adam_smith at my-deja.com*Date*: Sun, 10 Dec 2000 00:20:05 -0500 (EST)*References*: <90kq3d$r25@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Chris, Try the sample below. In Mathematica you use a double equal sign (==)to represent an equation. The single equal (=) assigns the results to a variable. In the following code, the solutions of "x" are assigned to the name "sol" In[4]:= sol = Solve[y == A*x^2 + B*x + C, x] Out[4]= 2 -B + Sqrt[B - 4 A C + 4 A y] {{x -> -----------------------------}, 2 A 2 B + Sqrt[B - 4 A C + 4 A y] {x -> -(----------------------------)}} 2 A In article <90kq3d$r25 at smc.vnet.net>, "Christopher Deacon" <cdeacon at physics.mun.ca> wrote: > Suppose y=a x^2+b x +c. > > How can I get Mathematica to solve for x (i.e., x=Ay^2+By+C) and give me the > values for the constants A,B,C? > > Chris > > -- > +-----------------------------+----------------------------+ > | Christopher Deacon | (709) 737-7631 > | Dept of Physics and Physical| cdeacon at physics.mun.ca > | Oceanography > | Memorial University of Nfld > +----------------------------+-----------------------------+ > | http://www.physics.mun.ca/~cdeacon > +----------------------------------------------------------+ > > Sent via Deja.com http://www.deja.com/ Before you buy.