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  2. Ackermann steering geometry - Wikipedia

    en.wikipedia.org/wiki/Ackermann_steering_geometry

    The intention of Ackermann geometry is to avoid the need for tyres to slip sideways when following the path around a curve. [2] The geometrical solution to this is for all wheels to have their axles arranged as radii of circles with a common centre point. As the rear wheels are fixed, this centre point must be on a line extended from the rear axle.

  3. Negative gearing - Wikipedia

    en.wikipedia.org/wiki/Negative_gearing

    Negative gearing is a form of financial leverage whereby an investor borrows money to acquire an income-producing investment and the gross income generated by the investment (at least in the short term) is less than the cost of owning and managing the investment, including depreciation and interest charged on the loan (but excluding capital repayments).

  4. Geometric modeling - Wikipedia

    en.wikipedia.org/wiki/Geometric_modeling

    Geometric modeling is a branch of applied mathematics and computational geometry that studies methods and algorithms for the mathematical description of shapes.The shapes studied in geometric modeling are mostly two- or three-dimensional (solid figures), although many of its tools and principles can be applied to sets of any finite dimension.

  5. Dirac delta function - Wikipedia

    en.wikipedia.org/wiki/Dirac_delta_function

    The impulse response can be computed to any desired degree of accuracy by choosing a suitable approximation for δ, and once it is known, it characterizes the system completely. See LTI system theory § Impulse response and convolution. The inverse Fourier transform of the tempered distribution f(ξ) = 1 is the delta function.

  6. Atlas (topology) - Wikipedia

    en.wikipedia.org/wiki/Atlas_(topology)

    The definition of an atlas depends on the notion of a chart. A chart for a topological space M is a homeomorphism from an open subset U of M to an open subset of a Euclidean space. The chart is traditionally recorded as the ordered pair (,). [1]

  7. Dihedral (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Dihedral_(aeronautics)

    In geometry, dihedral angle is the angle between two planes. Aviation usage differs slightly from usage in geometry. In aviation, the usage "dihedral" evolved to mean the positive, up angle between the left and right wings, while usage with the prefix "an-" (as in "anhedral") evolved to mean the negative, down angle between the wings.

  8. Transfer function - Wikipedia

    en.wikipedia.org/wiki/Transfer_function

    For a system to be stable, its transfer function must have no poles whose real parts are positive. If the transfer function is strictly stable, the real parts of all poles will be negative and the transient behavior will tend to zero in the limit of infinite time. The steady-state output will be:

  9. Negative gearing in Australia - Wikipedia

    en.wikipedia.org/wiki/Negative_gearing_in_Australia

    Negative gearing in Australia deals with the laws in the Australian income tax system relating to net loss suffered by a taxpayer on their investment property, commonly called negative gearing. Negative gearing can arise in a number of contexts; for example, with real estate investments, it arises when the net rental income is less than the ...