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  2. Parallel coordinates - Wikipedia

    en.wikipedia.org/wiki/Parallel_coordinates

    The value of parallel coordinates is that certain geometrical properties in high dimensions transform into easily seen 2D patterns. For example, a set of points on a line in n-space transforms to a set of polylines in parallel coordinates all intersecting at n − 1 points.

  3. Distance between two parallel lines - Wikipedia

    en.wikipedia.org/wiki/Distance_between_two...

    The distance between two parallel lines in the plane is the minimum distance between any two points. ... to get the coordinates of the intersection points. The ...

  4. Introduction to the mathematics of general relativity - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_the...

    The coordinate y is related to the coordinate x through the relation y 1 = r cos ⁠ x / r ⁠ and y 2 = r sin ⁠ x / r ⁠. This gives ⁠ ∂y 1 / ∂x ⁠ = −sin ⁠ x / r ⁠ and ⁠ ∂y 2 / ∂x ⁠ = cos ⁠ x / r ⁠ In this case the metric is a scalar and is given by g = cos 2 ⁠ x / r ⁠ + sin 2 ⁠ x / r ⁠ = 1. The interval is ...

  5. Homogeneous coordinates - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_coordinates

    Rational Bézier curve – polynomial curve defined in homogeneous coordinates (blue) and its projection on plane – rational curve (red) In mathematics, homogeneous coordinates or projective coordinates, introduced by August Ferdinand Möbius in his 1827 work Der barycentrische Calcul, [1] [2] [3] are a system of coordinates used in projective geometry, just as Cartesian coordinates are used ...

  6. Euclidean plane - Wikipedia

    en.wikipedia.org/wiki/Euclidean_plane

    2.1 Coordinate systems. 2.2 Embedding in three-dimensional space. 2.3 Polytopes. ... It is an affine space, which includes in particular the concept of parallel lines.

  7. Point (geometry) - Wikipedia

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

    In geometry, a point is an abstract idealization of an exact position, without size, in physical space, [1] or its generalization to other kinds of mathematical spaces.As zero-dimensional objects, points are usually taken to be the fundamental indivisible elements comprising the space, of which one-dimensional curves, two-dimensional surfaces, and higher-dimensional objects consist; conversely ...

  8. Shoelace formula - Wikipedia

    en.wikipedia.org/wiki/Shoelace_formula

    Shoelace scheme for determining the area of a polygon with point coordinates (,),..., (,). The shoelace formula, also known as Gauss's area formula and the surveyor's formula, [1] is a mathematical algorithm to determine the area of a simple polygon whose vertices are described by their Cartesian coordinates in the plane. [2]

  9. Generalized coordinates - Wikipedia

    en.wikipedia.org/wiki/Generalized_coordinates

    Let the forces on the system be F j (j = 1, 2, …, m) be applied to points with Cartesian coordinates r j (j = 1, 2, …, m), then the virtual work generated by a virtual displacement from the equilibrium position is given by = =.