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2. Hesse normal form - Wikipedia

   en.wikipedia.org/wiki/Hesse_normal_form

   Distance from the origin O to the line E calculated with the Hesse normal form. Normal vector in red, line in green, point O shown in blue. In analytic geometry, the Hesse normal form (named after Otto Hesse) is an equation used to describe a line in the Euclidean plane, a plane in Euclidean space, or a hyperplane in higher dimensions.

3. Normal (geometry) - Wikipedia

   en.wikipedia.org/wiki/Normal_(geometry)

   For a plane given by the general form plane equation + + + =, the vector = (,,) is a normal. For a plane whose equation is given in parametric form (,) = + +, where is a point on the plane and , are non-parallel vectors pointing along the plane, a normal to the plane is a vector normal to both and , which can be found as the cross product =.

4. Euclidean planes in three-dimensional space - Wikipedia

   en.wikipedia.org/wiki/Euclidean_planes_in_three...

   Conversely, it is easily shown that if a, b, c, and d are constants and a, b, and c are not all zero, then the graph of the equation + + + =, is a plane having the vector n = (a, b, c) as a normal. [5] This familiar equation for a plane is called the general form of the equation of the plane or just the plane equation. [6]

5. Normal plane (geometry) - Wikipedia

   en.wikipedia.org/wiki/Normal_plane_(geometry)

   The normal section of a surface at a particular point is the curve produced by the intersection of that surface with a normal plane. [1] [2] [3] The curvature of the normal section is called the normal curvature. If the surface is bow or cylinder shaped, the maximum and the minimum of these curvatures are the principal curvatures.

6. Plane (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Plane_(mathematics)

   In mathematics, a plane is a two-dimensional space or flat surface that extends indefinitely. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space. When working exclusively in two-dimensional Euclidean space, the definite article is used, so the Euclidean plane refers to the ...

7. File:Axial and normal force.png - Wikipedia

   en.wikipedia.org/.../File:Axial_and_normal_force.png

   What links here; Upload file; Special pages; Printable version; Page information; Get shortened URL; Download QR code

8. File:Notation for vectors in or out of a plane.svg - Wikipedia

   en.wikipedia.org/wiki/File:Notation_for_vectors...

   English: The notations used to indicate that a vector is going into (left) or coming out of (right) the screen or a page Italiano: Rappresentazione grafica di un vettore entrante (sinistra) o uscente (destra) dal foglio (o da un piano geometrico)

9. File:Airplane silhouette.svg - Wikipedia

   en.wikipedia.org/wiki/File:Airplane_silhouette.svg

   This image is a derivative work of the following images: File:Airplane silhouette.png licensed with PD-self 2006-12-03T09:53:01Z Jupaju 500x500 (9668 Bytes) {{Information |Description=Icon-type silhouette of an airplane. (Mainly to be used in Userboxes) |Source=Own work |Date= December 3rd, 2006 |Author=Jussi Paju |Permission=Public Domain ...