Solve equation without symbolic math toolbox
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Benoit
el 19 de Mzo. de 2014
Respondida: Benoit
el 20 de Mzo. de 2014
Hello ,
I'm trying to solve this equation : 0 = (U/r.^3)* sqrt(-2+((3*r.^3)*(Bx/U)))-B
U is a constant
Bx and B are column matrix
I would have as a result a value of r for each value of Bx and B
is it possible to do this without the Symbolic math toolbox ?
Thank you
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Chris C
el 19 de Mzo. de 2014
You can run this with two functions. The first function I have designated as myMain.m and it is written as..
r0 = rand(3,3);
fsolve(@myfun,r0)
The second function myfun.m is called by the first function by passing initial guesses of r as r0. I altered the way your equation above was written and wrote the function as...
function F = myfun(r)
Bx = rand(3,1);
B = rand(3,1);
U = rand(1);
F = (U)*sqrt(-2+((3*r.^3)*(Bx/U)))-r.^3*B;
end
Change the matrices to whatever numbers you need and it should work.
Good luck.
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