Vectors

Vector operations

dot(v1,v2) performs the dot product of two vectors, they both should have the same size. Full Documentation
```
  v1 = [1 2 5];
  v2 = [2 5 2];
  dot(v1,v2)
```
cross(v1,v2) performs the cross product of two vectors, the vectors should be of length 3. Full Documentation
```
  cross(v1,v2)
```
norm(v1) calculates the magnitude of an array or vector. Full Documentation
```
  norm(v1)
```
To calculate the unit vector of a vector then simply:
```
  unitv1 = v1/norm(v1)
```
Plotting

IMPORTANT plotv requires the Deep learning toolbox to work. Make sure it is installed before trying to use it.
plotv(M) generates 2 Dimensional plot of vectors from the origin, the input argument M is a matrix that contains the x components of the vectors in the first row and the second row contains the y components of the vectors: M = [x1 x2; y1 y2]. Full Documentation
```
  M = [2 3 5; 1 2 3];
  plotv(M)
```

plot3(X,Y,Z) can be used to plot points on 3D space, X Y Z have to be arrays of equal size. The points are connected with a line Full Documentation
```
  X = [4 5 7];
  Y = [1 6 5];
  Z = [8 4 2];
  plot3(X,Y,Z)
```

quiver3(X,Y,Z,U,V,W) plots 3D arrows starting from the coordinates X Y Z with directional vector components of U V W. Full Documentation
```
  X = [0 0 0];
  Y = [5 -2 1];
  Z = [1 3 5];
  U = [2 2 2];
  V = [3 3 3];
  W = [-1 -1 -1];
  quiver3(X,Y,Z,U,V,W)
```