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NASP (organization) – Initialism for the National Archery in the Schools Program, a youth archery program founded and based in the U.S. but also operating in several other countries. nock (equipment) – The notch at the rear end of an arrow; also the notches at the ends of the bow limbs to which the bowstring is attached, or looped over
In many scientific fields, the degrees of freedom of a system is the number of parameters of the system that may vary independently. For example, a point in the plane has two degrees of freedom for translation : its two coordinates ; a non-infinitesimal object on the plane might have additional degrees of freedoms related to its orientation .
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A single unconstrained body soaring in 3-space has 6 degrees of freedom: 3 translational (say, x,y,z); and 3 rotational (say, roll, pitch, yaw). So a system of n {\displaystyle n} unconnected rigid bodies moving in space (a flock of n {\displaystyle n} soaring seagulls) has 6 n {\displaystyle 6n} degrees of freedom measured relative to a fixed ...
A degree of freedom X i is quadratic if the energy terms associated with this degree of freedom can be written as = +, where Y is a linear combination of other quadratic degrees of freedom. example: if X 1 and X 2 are two degrees of freedom, and E is the associated energy:
A degree of freedom corresponds to one quantity that changes the configuration of the system, for example the angle of a pendulum, or the arc length traversed by a bead along a wire. If it is possible to find from the constraints as many independent variables as there are degrees of freedom, these can be used as generalized coordinates. [ 5 ]
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In other words, a rotation formalism captures only the rotational part of a motion, that contains three degrees of freedom, and ignores the translational part, that contains another three. When representing a rotation as numbers in a computer, some people prefer the quaternion representation or the axis+angle representation, because they avoid ...