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Featherstone's algorithm is a technique used for computing the effects of forces applied to a structure of joints and links (an "open kinematic chain") such as a skeleton used in ragdoll physics. The Featherstone's algorithm uses a reduced coordinate representation. This is in contrast to the more popular Lagrange multiplier method, which uses maximal coordinates. Brian Mirtich's PhD Thesis has a very clear and detailed description of the algorithm. Baraff's paper "Linear-time dynamics using Lagrange multipliers" has a discussion and comparison of both algorithms.

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  • خوارزمية فيذرستون (ar)
  • Featherstone's algorithm (en)
  • Algoritmo de Featherstone (pt)
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  • خوارزمية فيذرستون هي طريقة تُستخدم لحساب الآثار المُترَتِّبة على القوى التي تقع على بنية المفاصل والروابِط ("سلسلة حركية مفتوحة") مثل الهيكل العظمي المُستخدم في راقدول فيزيكس. تستخدم خوارزمية فيذرستون التمثيل الإحداثيّ المختزل. وهذا على العكس من المنهج المُستخدم الأكثر شُيوعًا، وهو مضاعف لاغرانج، الذي يقوم بتطبيق الإحداثيات القُصوى. أُطروحة الدكتوراه لبراين ميرتيتش تقوم بِشرح الخوارزمية بشكلٍ واضح ومفصّل. كما أنَّ رِسالة بحث باراف بعنوان "Linear-time dynamics using Lagrange multipliers" (دينامكيات الوقت الخطية باستخدام مضاعف لاغرانغ) تناقش كلاً من الخوارزميتين وتُقارِنهما ببعضهما. (ar)
  • Featherstone's algorithm is a technique used for computing the effects of forces applied to a structure of joints and links (an "open kinematic chain") such as a skeleton used in ragdoll physics. The Featherstone's algorithm uses a reduced coordinate representation. This is in contrast to the more popular Lagrange multiplier method, which uses maximal coordinates. Brian Mirtich's PhD Thesis has a very clear and detailed description of the algorithm. Baraff's paper "Linear-time dynamics using Lagrange multipliers" has a discussion and comparison of both algorithms. (en)
  • O algoritmo de Featherstone é uma técnica utilizada para calcular os efeitos de forças aplicadas a uma estrutura de articulações (juntas, joints) e elos (ligações, links), ou seja, uma "cadeia cinemática", como esqueletos usados em . O algoritmo de Featherstone usa uma representação de coordenadas reduzidas. Isto está em contraste com o método mais popular dos multiplicadores de Lagrange, que utiliza o máximo de coordenadas. O algoritmo de Featherstone foi introduzido por Roy Featherstone em 1983 num artigo intitulado "The Calculation of Robot Dynamics Using Articulated-Body Inertias". (pt)
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  • خوارزمية فيذرستون هي طريقة تُستخدم لحساب الآثار المُترَتِّبة على القوى التي تقع على بنية المفاصل والروابِط ("سلسلة حركية مفتوحة") مثل الهيكل العظمي المُستخدم في راقدول فيزيكس. تستخدم خوارزمية فيذرستون التمثيل الإحداثيّ المختزل. وهذا على العكس من المنهج المُستخدم الأكثر شُيوعًا، وهو مضاعف لاغرانج، الذي يقوم بتطبيق الإحداثيات القُصوى. أُطروحة الدكتوراه لبراين ميرتيتش تقوم بِشرح الخوارزمية بشكلٍ واضح ومفصّل. كما أنَّ رِسالة بحث باراف بعنوان "Linear-time dynamics using Lagrange multipliers" (دينامكيات الوقت الخطية باستخدام مضاعف لاغرانغ) تناقش كلاً من الخوارزميتين وتُقارِنهما ببعضهما. (ar)
  • Featherstone's algorithm is a technique used for computing the effects of forces applied to a structure of joints and links (an "open kinematic chain") such as a skeleton used in ragdoll physics. The Featherstone's algorithm uses a reduced coordinate representation. This is in contrast to the more popular Lagrange multiplier method, which uses maximal coordinates. Brian Mirtich's PhD Thesis has a very clear and detailed description of the algorithm. Baraff's paper "Linear-time dynamics using Lagrange multipliers" has a discussion and comparison of both algorithms. (en)
  • O algoritmo de Featherstone é uma técnica utilizada para calcular os efeitos de forças aplicadas a uma estrutura de articulações (juntas, joints) e elos (ligações, links), ou seja, uma "cadeia cinemática", como esqueletos usados em . O algoritmo de Featherstone usa uma representação de coordenadas reduzidas. Isto está em contraste com o método mais popular dos multiplicadores de Lagrange, que utiliza o máximo de coordenadas. O algoritmo de Featherstone foi introduzido por Roy Featherstone em 1983 num artigo intitulado "The Calculation of Robot Dynamics Using Articulated-Body Inertias". (pt)
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