MATLAB: Rotating a Vector

rotatevectors

Hello! I am wondering if anyone has an elegant way to rotate a vector by a specified degree.

For example, I have a vector that goes from (0,0) to (-1,-12). I want to rotate this vector by 5 degrees, incrementally until it reaches the x-axis.

Obviously this can be done from the math, but I wonder if anyone has a nicer way of doing this.

Thank you in advance!

Amina

complex

vR = v*[1;1i]*exp(-1i*theta*pi/180)

For brevity call X = data2_var1 and Y = data2_var2. Do things this way:

 vR=[X(:),Y(:)]*R;
 X2 = reshape(vR(:,1),size(X));
 Y2 = reshape(vR(:,2),size(Y));

X2 and Y2 constitute the x and y components of your rotated field.

0 is not a valid index in MATLAB. MATLAB indices start at 1. You probably want

x = H0F(1,3);
y = H0F(2,3);
z = H0F(3,3);