**Direction Cosines**

**Interactive Graph**

Use the Interactive diagram given below to see the direction cosines of a vector with x, y , z and all three axis in three dimensional view.

- Go Back to Default View: You may move the coordinate system back to the default view.
- Start / Stop rotating the View Automatically
- Adjust the View Direction: You may choose between the view towards the
*xOy*-plane,*xOz*-plane,*yOz*-plane, - rotate back to the default view.

**1. Direction cosine of a vector with x axis.**

Hold and drag the point ‘p’ Horizontally and vertically to adjust the position vector of ‘P’ and observe the angel it make with x – axis.

**2. Direction cosine of a vector with y axis.**

Hold and drag the point ‘p’ Horizontally and vertically to adjust the position vector of ‘P’ and observe the angel it make with y – axis.

**3. Direction cosine of a vector with z axis.**

Hold and drag the point ‘p’ Horizontally and vertically to adjust the position vector of ‘P’ and observe the angel it make with z – axis.

**3. Direction cosine of a vector**

Hold and drag the point ‘p’ Horizontally and vertically to adjust the position vector of ‘P’ and observe the angel it make with all three axes.