unable to solve vpasolve

why does my code create a 3X1 Sym matrix for L_to_B_inital? i think it should be 1x1 and matlab doesn't give me an answer for L_to_B_initial?

im so confused

Any advice would be appricated, thank you

Cp=2.0714;

Cv=0.6360;

syms L_to_B_initial;

L_to_B = vpasolve((0.75-(1/(((5.236*Cv^2)/(L_to_B_initial^2))+2.4)))-Cp/L_to_B_initial == 0, L_to_B_initial, 2.5);

[Torsten]

Your equation has 3 solutions - thus a 3x1 array.

[Amy Potter]

But the equation I am solving is not a cubic? So how does it have 3 solutions?

[Torsten]

If you multiply by the common denominator, you'll see your equation becomes a cubic.