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  2. Surface of revolution - Wikipedia

    en.wikipedia.org/wiki/Surface_of_revolution

    A portion of the curve x = 2 + cos(z) rotated around the z-axis A torus as a square revolved around an axis parallel to one of its diagonals.. A surface of revolution is a surface in Euclidean space created by rotating a curve (the generatrix) one full revolution around an axis of rotation (normally not intersecting the generatrix, except at its endpoints). [1]

  3. Thin plate energy functional - Wikipedia

    en.wikipedia.org/wiki/Thin_plate_energy_functional

    Rotating (x,y) by theta about z-axis to (X,Y) Original surface with point (x,y) Rotated surface with rotated point (X,Y) The TPEF is rotationally invariant. This means that if all the points of the surface (,) are rotated by an angle about the -axis, the TPEF at each point (,) of the surface equals the TPEF of the rotated surface at the rotated (,).

  4. Spheroid - Wikipedia

    en.wikipedia.org/wiki/Spheroid

    The oblate spheroid is generated by rotation about the z-axis of an ellipse with semi-major axis a and semi-minor axis c, therefore e may be identified as the eccentricity. (See ellipse .) [ 3 ] A prolate spheroid with c > a has surface area

  5. Toric code - Wikipedia

    en.wikipedia.org/wiki/Toric_code

    The means to perform quantum computation on logical information stored within the toric code has been considered, with the properties of the code providing fault-tolerance. It has been shown that extending the stabilizer space using 'holes', vertices or plaquettes on which stabilizers are not enforced, allows many qubits to be encoded into the ...

  6. Computer representation of surfaces - Wikipedia

    en.wikipedia.org/wiki/Computer_representation_of...

    A surface may be composed of one or more patches, where each patch has its own U-V coordinate system. These surface patches are analogous to the multiple polynomial arcs used to build a spline. They allow more complex surfaces to be represented by a series of relatively simple equation sets rather than a single set of complex equations.

  7. Solid of revolution - Wikipedia

    en.wikipedia.org/wiki/Solid_of_revolution

    Two common methods for finding the volume of a solid of revolution are the disc method and the shell method of integration.To apply these methods, it is easiest to draw the graph in question; identify the area that is to be revolved about the axis of revolution; determine the volume of either a disc-shaped slice of the solid, with thickness δx, or a cylindrical shell of width δx; and then ...

  8. Pappus's centroid theorem - Wikipedia

    en.wikipedia.org/wiki/Pappus's_centroid_theorem

    The theorem applied to an open cylinder, cone and a sphere to obtain their surface areas. The centroids are at a distance a (in red) from the axis of rotation.. In mathematics, Pappus's centroid theorem (also known as the Guldinus theorem, Pappus–Guldinus theorem or Pappus's theorem) is either of two related theorems dealing with the surface areas and volumes of surfaces and solids of ...

  9. Parametric surface - Wikipedia

    en.wikipedia.org/wiki/Parametric_surface

    A parametric surface is a ... Parametric surface forming a trefoil knot, equation details in the attached source code. ... a ≤ x ≤ b is rotated about the z ...