getting mldivide error in a common equation!

i dont know what im doing wrong! its a simple equation with no vector and im getting

? ?? Error using ==> mldivide

Matrix dimensions must agree.

Error in ==> eqtest at 4

uo2=( (0.131*(denss-densf)*g*(c2*(yo2/dp)*sin(ang1))*(1+(1.732*tan(ang2))...

the script is

clc

entradas; 

yo2=1;

uo2=( (0.131*(denss-densf)*g*(c2*(yo2/dp)*sin(ang1))*(1+(1.732*tan(ang2))...
    )*sin(ang1))/(densf*((0.1651*cd)+(0.0982*cl))))^1/2;

Answer 1

[Walter Roberson]

Use ./ instead of /

Caution: N^1/2 means (N^1)/2 which is N/2 . If you want to take the square root use N^(1/2), or better yet use sqrt(N)