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  2. List of interactive geometry software - Wikipedia

    en.wikipedia.org/wiki/List_of_interactive...

    There are three main types of computer environments for studying school geometry: supposers [vague], dynamic geometry environments (DGEs) and Logo-based programs. [2] Most are DGEs: software that allows the user to manipulate ("drag") the geometric object into different shapes or positions.

  3. Shape analysis (digital geometry) - Wikipedia

    en.wikipedia.org/wiki/Shape_analysis_(digital...

    Shape descriptors can be classified by their invariance with respect to the transformations allowed in the associated shape definition. Many descriptors are invariant with respect to congruency, meaning that congruent shapes (shapes that could be translated, rotated and mirrored) will have the same descriptor (for example moment or spherical harmonic based descriptors or Procrustes analysis ...

  4. Design optimization - Wikipedia

    en.wikipedia.org/wiki/Design_optimization

    There are several domain-specific applications of design optimization posing their own specific challenges in formulating and solving the resulting problems; these include, shape optimization, wing-shape optimization, topology optimization, architectural design optimization, power optimization. Several books, articles and journal publications ...

  5. List of tool manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_tool_manufacturers

    hand tools, air tools, power tools, diagnostic tools, assorted automotive tools Gedore: Remscheid, Germany: Gedore: hand tools Gray Tools: Toronto, Ontario, Canada: Gray Tools, Dynamic: Industrial hand tools Griffon Corporation: Ames True Temper: outdoor hand tools [13] King Dick Tools: Birmingham United Kingdom: King Dick: Mechanics tools ...

  6. Differential geometry of surfaces - Wikipedia

    en.wikipedia.org/wiki/Differential_geometry_of...

    The following summarizes the calculation of the above quantities relative to a Monge patch f(u, v) = (u, v, h(u, v)). Here h u and h v denote the two partial derivatives of h, with analogous notation for the second partial derivatives. The second fundamental form and all subsequent quantities are calculated relative to the given choice of unit ...

  7. Statistical shape analysis - Wikipedia

    en.wikipedia.org/wiki/Statistical_shape_analysis

    Statistical shape analysis is an analysis of the geometrical properties of some given set of shapes by statistical methods. For instance, it could be used to quantify differences between male and female gorilla skull shapes, normal and pathological bone shapes, leaf outlines with and without herbivory by insects, etc. Important aspects of shape analysis are to obtain a measure of distance ...

  8. Glossary of shapes with metaphorical names - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_shapes_with...

    M-shape, the shape that resembles the capital letter M (interchangeable with the W-shape) N-shape, the shape that resembles the capital letter N (interchangeable with the Z-shape) O-shape, the shape that resembles the capital letter O. O-ring; P-shape, the shape that resembles the capital letter P. P-trap, a P-shaped pipe under a sink or basin ...

  9. Robertson screw - Wikipedia

    en.wikipedia.org/wiki/Robertson_screw

    A Robertson screw, also known as a square screw [1] or Scrulox, [2] is a type of screw with a square-shaped socket in the screw head and a corresponding square protrusion on the tool. Both the tool and socket have a slight taper .