This app shows us the steps to tackle the most common techniques in 3D vectors:

• Equation of a line or plane
• Angle between lines/planes
• Intersection of lines/planes
• (Shortest) distance between points/lines/planes
• Foot of perpendicular and reflection
• Relationship between points/lines/planes

Choose between a point, line, or plane

To start, we provide the app with two objects (combination of points, lines and planes)

Edit the components

Each of the numbers in the boxes can be edited: we support integers, decimals or fractions (proper or improper; mixed fractions are not supported). A red border indicates an error: the app does not understand the input

Look up the relevant techniques

The relevant techniques will be shown after specifying the two objects. Click on the header of each technique to expand the section and click again to hide it. Techniques that are not applicable will be disabled and greyed out.