# Vector Projection

## An interactive 3D plot

You can specify two vectors **v** and **w**; you may also multiply **v** by a scalar \(\alpha\) and **w** by a scalar \(\beta\) by adjusting the sliders (by default \(\alpha\) and \(\beta\) are set to 1). The vector \(\alpha\)**v** will be plotted in **blue**, \(\beta\)**w** will be plotted in **green**, and the **projection** \(proj_vw\) will be plotted in **red**. Optionally, you can view the right-angled triangle determined by **w** and \(proj_vw\).

Click the “Evaluate” button below.