MATLAB: Vector

MATLABvector

Im trying to convert a vector O in radian into x-coordinate vector and y-coordinate vector but Im encountering the problem below.
??? Error using ==> mpower Inputs must be a scalar and a square matrix.
Error in ==> Untitled4 at 22 r=[(a*b)/sqrt((b*cos(O))^2+(a*sin(O))^2)]; % ellipse in polar coordinates
    npanels=3;
    a=1.25; %major axis
    b=0.75; %minor axis
    O=[pi-pi/(2*npanels):-pi/(npanels):pi/(2*npanels)]; %boundary points in radian
    r=[(a*b)/sqrt((b*cos(O))^2+(a*sin(O))^2)]; % ellipse in polar coordinates
    x=rcos(O); %x-coordinate
    y=rsin(O); %y-coordinate

Best Answer

.^ instead of ^
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