>> solve('160^2=((9000000/(0.53*h^3+21.47*h+1431.68*h)*(15^2+h^2/4)^0.5*30/(900+h^2)+30000/2/6.363/h)^2+(9000000/(0.53*h^3+21.47*h+1431.68*h)*(15^2+h^2/4)^0.5*h/(900+h^2))^2','h')
??? Error using ==> solve>getEqns at 182
'
160^2=((9000000/(0.53*h^3+21.47*h+1431.68*h)*(15^2+h^2/4)^0.5*30/(900+h^2)+30000/2/6.363/h)^2+(9000000/(0.53*h^3+21.47*h+1431.68*h)*(15^2+h^2/4)^0.5*h/(900+h^2))^2
' is not a valid expression or equation.
Error in ==> solve at 67
[eqns,vars] = getEqns(varargin{:});