Curvature (mathematics) | Calculus | Tensors | Differential geometry | Riemannian geometry
The calculus of moving surfaces (CMS) is an extension of the classical tensor calculus to deforming manifolds. Central to the CMS is the Tensorial Time Derivative whose original definition was put forth by Jacques Hadamard. It plays the role analogous to that of the covariant derivative on differential manifolds in that it produces a tensor when applied to a tensor. Suppose that is the evolution of the surface indexed by a time-like parameter . The definitions of the surface velocity and the operator are the geometric foundations of the CMS. The velocity C is the rate of deformation of the surface in the instantaneous normal direction. The value of at a point is defined as the limit where is the point on that lies on the straight line perpendicular to at point P. This definition is illustrated in the first geometric figure below. The velocity is a signed quantity: it is positive when points in the direction of the chosen normal, and negative otherwise. The relationship between and is analogous to the relationship between location and velocity in elementary calculus: knowing either quantity allows one to construct the other by differentiation or integration. The Tensorial Time Derivative for a scalar field F defined on is the rate of change in in the instantaneously normal direction: This definition is also illustrated in second geometric figure. The above definitions are geometric. In analytical settings, direct application of these definitions may not be possible. The CMS gives analytical definitions of C and in terms of elementary operations from calculus and differential geometry. (Wikipedia).
Calculus 3 Lecture 13.7: Finding Tangent Planes and Normal Lines to Surfaces
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From playlist Calculus 3 (Full Length Videos)
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Visit http://ilectureonline.com for more math and science lectures! In this video I will further explain the position, velocity, and acceleration of a particle moving along a curve not just in terms of the x=x(t) and y=y(t) components but also in terms of parallel and perpendicular compon
From playlist CALCULUS 3 CH 3.1 VECTOR CALCULUS: MOTION IN A PLANE
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Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the general concept of motion in a plane (2-D) in vector calculus in relationship to position vector (r(t)), velocity vector (v(t)), and, later, acceleration vector (a(t)). Next video in the
From playlist CALCULUS 3 CH 3.1 VECTOR CALCULUS: MOTION IN A PLANE
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From playlist Advanced Calculus / Multivariable Calculus
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Visit http://ilectureonline.com for more math and science lectures! In this video I will find the position vector r(t-4)=? and velocity vector v(t=4)=? at t=4 given parametric equations x(t) and y(t). Next video in the series can be seen at: https://youtu.be/j88AHzq_x0w
From playlist CALCULUS 3 CH 3.1 VECTOR CALCULUS: MOTION IN A PLANE
Orientation and stokes | Multivariable Calculus | Khan Academy
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This course will eventually continue on Patreon at http://bit.ly/PavelPatreon Textbook: http://bit.ly/ITCYTNew Errata: http://bit.ly/ITAErrata McConnell's classic: http://bit.ly/MCTensors Table of Contents of http://bit.ly/ITCYTNew Rules of the Game Coordinate Systems and the Role of Te
From playlist Introduction to Tensor Calculus
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This course will eventually continue on Patreon at http://bit.ly/PavelPatreon Textbook: http://bit.ly/ITCYTNew Errata: http://bit.ly/ITAErrata McConnell's classic: http://bit.ly/MCTensors Table of Contents of http://bit.ly/ITCYTNew Rules of the Game Coordinate Systems and the Role of Te
From playlist Introduction to Tensor Calculus
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https://www.patreon.com/PavelGrinfeld
From playlist My Original Results
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This course will eventually continue on Patreon at http://bit.ly/PavelPatreon Textbook: http://bit.ly/ITCYTNew Errata: http://bit.ly/ITAErrata McConnell's classic: http://bit.ly/MCTensors Table of Contents of http://bit.ly/ITCYTNew Rules of the Game Coordinate Systems and the Role of Te
From playlist Introduction to Tensor Calculus
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This course will eventually continue on Patreon at http://bit.ly/PavelPatreon Textbook: http://bit.ly/ITCYTNew Errata: http://bit.ly/ITAErrata McConnell's classic: http://bit.ly/MCTensors Table of Contents of http://bit.ly/ITCYTNew Rules of the Game Coordinate Systems and the Role of Te
From playlist Introduction to Tensor Calculus
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This course will eventually continue on Patreon at http://bit.ly/PavelPatreon Textbook: http://bit.ly/ITCYTNew Errata: http://bit.ly/ITAErrata McConnell's classic: http://bit.ly/MCTensors Table of Contents of http://bit.ly/ITCYTNew Rules of the Game Coordinate Systems and the Role of Te
From playlist Introduction to Tensor Calculus
http://bit.ly/PavelPatreon Textbook: http://bit.ly/ITCYTNew Errata: http://bit.ly/ITAErrata McConnell's classic: http://bit.ly/MCTensors Table of Contents of http://bit.ly/ITCYTNew Rules of the Game Coordinate Systems and the Role of Tensor Calculus Change of Coordinates The Tensor Desc
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