MATlab coding assignment ****** I have the code for part a, well most of it, my real issue is part b, if someone could code both that'd be nice, but here's my code for part A!

a)

% givensrot.m

function Gval =givensrot(n1,i1,j1,theta) % func generate

if(i1=j1 || j1>n1) % condition process

Gval = []; % return matrix

return % display

end % end

Gval = eye(n1); % gkk matrix

Gval(i1,i1) = cos(theta);

Gval(j1,j1) = cos(theta);

Gval(j1,i1) = -sin(theta);

Gval(i1,j1) = sin(theta);

end % End of function

%main.m

Gval =givensrot(4,3,2,pi/2)

Gval =givensrot(5,2,4,pi/4)

Gval =givensrot(3,1,2,pi)

ExercIsE3 (5 points) Theory: The transformation defined by the matrix A- performs a rotation in x1x2-plane through the angle ? radians in the counterclockwise direction for a positive angle 0. The same type of a "plane" rotation in x.x, -plane can be performed in IR" (n2 2, l