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  2. Linear equation - Wikipedia

    en.wikipedia.org/wiki/Linear_equation

    2.3.1 Slope–intercept form or Gradient-intercept form. ... The two-point form of the equation of a line can be expressed simply in terms of a determinant. There are ...

  3. Line–plane intersection - Wikipedia

    en.wikipedia.org/wiki/Line–plane_intersection

    The point at which the line intersects the plane is therefore described by setting the point on the line equal to the point on the plane, giving the parametric equation: l a + l a b t = p 0 + p 01 u + p 02 v . {\displaystyle \mathbf {l} _{a}+\mathbf {l} _{ab}t=\mathbf {p} _{0}+\mathbf {p} _{01}u+\mathbf {p} _{02}v.}

  4. Third-order intercept point - Wikipedia

    en.wikipedia.org/wiki/Third-order_intercept_point

    The third-order intercept point relates nonlinear products caused by the third-order nonlinear term to the linearly amplified signal, in contrast to the second-order intercept point that uses second-order terms. The intercept point is a purely mathematical concept and does not correspond to a practically occurring physical power level.

  5. Line–line intersection - Wikipedia

    en.wikipedia.org/wiki/Line–line_intersection

    The intersection point falls within the first line segment if 0 ≤ t ≤ 1, and it falls within the second line segment if 0 ≤ u ≤ 1. These inequalities can be tested without the need for division, allowing rapid determination of the existence of any line segment intersection before calculating its exact point.

  6. Slope - Wikipedia

    en.wikipedia.org/wiki/Slope

    Slope illustrated for y = (3/2)x − 1.Click on to enlarge Slope of a line in coordinates system, from f(x) = −12x + 2 to f(x) = 12x + 2. The slope of a line in the plane containing the x and y axes is generally represented by the letter m, [5] and is defined as the change in the y coordinate divided by the corresponding change in the x coordinate, between two distinct points on the line.

  7. Line (geometry) - Wikipedia

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

    Normal vector in red, line in green, point O shown in blue. The normal form (also called the Hesse normal form, [10] after the German mathematician Ludwig Otto Hesse), is based on the normal segment for a given line, which is defined to be the line segment drawn from the origin perpendicular to the line. This segment joins the origin with the ...

  8. Linear function (calculus) - Wikipedia

    en.wikipedia.org/wiki/Linear_function_(calculus)

    The y-intercept point (,) = (,) corresponds to buying only 4 kg of sausage; while the x-intercept point (,) = (,) corresponds to buying only 2 kg of salami. Note that the graph includes points with negative values of x or y , which have no meaning in terms of the original variables (unless we imagine selling meat to the butcher).

  9. Analytic geometry - Wikipedia

    en.wikipedia.org/wiki/Analytic_geometry

    More precisely, a straight line is said to be a tangent of a curve y = f(x) at a point x = c on the curve if the line passes through the point (c, f(c)) on the curve and has slope f ' (c) where f ' is the derivative of f. A similar definition applies to space curves and curves in n-dimensional Euclidean space.