tensor index造句

In the corresponding tensor index notation, the above matrix expression is
If is any four-vector, then in tensor index notation
One can associate a tensor index or coordinate label with a basis vector direction.
The notation used here is commonly used in statistics and engineering, while the tensor index notation is preferred in physics.
A more general notation is tensor index notation, which has the flexibility of numerical values rather than fixed coordinate labels.
It's difficult to find tensor index in a sentence. 用tensor index造句挺难的

The tensor index notation applies to any object which has entities that form multidimensional arrays not everything with indices is a tensor by default.
The notations in this article are : lowercase bold for four dimensional vectors ( except for the four-gradient ), and tensor index notation.
The tensor index notation with its Einstein summation convention is very similar to the matrix calculus, except one writes only a single component at a time.
This should not be confused with a typographically similar convention used to distinguish between tensor index notation and the closely related but distinct basis-independent abstract index notation.
Cartesian tensors use tensor index notation, in which the variance may be glossed over and is often ignored, since the components remain unchanged by raising and lowering indices.
See also Ricci calculus for a summary of tensor index notations, and raising and lowering indices for definition of superscript and subscript indices, and how to switch between them.
The angular momentum tensor "'M "'is indeed a tensor, the components change according to a Lorentz transformation matrix ?, as illustrated in the usual way by tensor index notation
Throughout, the standard conventions of tensor index notation and Feynman slash notation are used, including Greek indices which take the values 1, 2, 3 for the spatial components and 0 for the timelike component of the indexed quantities.