trigonometric non linear equation

Trying to solve the nonlinear equation using this code but geeting error :

code :-----------------------------------------------------------------------------------------------

F=@(x) [(Vm/3)*{cos(x(2))-cos(x(1)+pi/3)+1.5*cos(x(1))-1.5*cos(x(2))}-Vdc*{(x(2)-x(1))/2-(2*x(2))/2+(x(1)+pi/3)/1.5}; (Vm/3)*{cos(x(1)+pi/3)-cos(x(2))+cos(x(2)-(2*pi)/3)-cos(x(1)-pi/3)-1.5*cos(x(1)+pi/3)+1.5*cos(x(1))}-Vdc*{(x(1)-x(2)+pi/3)/3-(x(2)-x(1))/2}];

x0=[-1;1];

options=optimoptions('fsolve', 'Display', 'iter');

Error:::-------------------------------------------------------------------------------------------------

Undefined operator '*' for input arguments of type 'cell'.

Error in

@(x)[(Vm/3)*{cos(x(2))-cos(x(1)+pi/3)+1.5*cos(x(1))-1.5*cos(x(2))}-Vdc*{(x(2)-x(1))/2-(2*x(2))/2+(x(1)+pi/3)/1.5};(Vm/3)*{cos(x(1)+pi/3)-cos(x(2))+cos(x(2)-(2*pi)/3)-cos(x(1)-pi/3)-1.5*cos(x(1)+pi/3)+1.5*cos(x(1))}-Vdc*{(x(1)-x(2)+pi/3)/3-(x(2)-x(1))/2}]

Error in fsolve (line 242)

fuser = feval(funfcn{3},x,varargin{:});

[deepak verma]

To get the value of theta 1 and theta2 : Vm=80 and Vdc=72

Answer 1

[William]

I have no idea what this question is about, but I do notice that some of the expressions are surrounded with curly braces { } rather than parentheses ( ). In Matlab, the curly braces indicate a cell-array, and that seems to be causing a problem with the multiplication operator (which cannot be used on cells).

[deepak verma]

thanx solved. Curley braces were the problem