(Simple) How to solve basic equation
6 views (last 30 days)
Show older comments
Wondering if someone can help me find the error in this simple code. I'm trying to solve for N in terms of b and bt.
sym b bt N
k = 1/24;
l = (b + 0.5)/(6 + 12*b);
m = (b^2 + b/2)/(2 + 4*b);
q = ( (-k+l+m) + bt*(-4*k+3*l+2*m) )/ (1 + 2*bt);
eqn = -1/336 - l/24 + (6/5)*l^2 + 3*m/10 + 2*m*l + (2/3)*m^2 - q/6 - bt*q/6 + (3*l*q + 2*m*q)*(1+bt) == 1/N;
s = solve(eqn, N)
0 Comments
Accepted Answer
Star Strider
on 25 Nov 2014
In R2014b, you have to replace ‘sym’ with ‘syms’. Otherwise, all you need to do is to add collect and simplify calls to get a simplified result:
s = solve(eqn, N)
s = simplify(collect(s),'steps',10)
produces:
s =
10080/((1260*bt + 1680)*b^2 + (420*bt + 1596)*b + 35*bt + 54)
More Answers (1)
Amutha S
on 16 Dec 2020
sym b bt N
k = 1/24;
l = (b + 0.5)/(6 + 12*b);
m = (b^2 + b/2)/(2 + 4*b);
q = ( (-k+l+m) + bt*(-4*k+3*l+2*m) )/ (1 + 2*bt);
eqn = -1/336 - l/24 + (6/5)*l^2 + 3*m/10 + 2*m*l + (2/3)*m^2 - q/6 - bt*q/6 + (3*l*q + 2*m*q)*(1+bt) == 1/N;
s = solve(eqn, N)
0 Comments
See Also
Categories
Find more on Symbolic Math Toolbox in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!