tensor quantity造句
例句与造句
- The duality between covariance and contravariance intervenes whenever a vector or tensor quantity is represented by its components, although modern differential geometry uses more sophisticated index-free methods to represent tensors.
- The split between the time component and the spatial components is a useful one to make when determining contractions of one four vector with other tensor quantities, such as for calculating Lorentz invariants in inner products ( examples are given below ), or raising and lowering indices.
- These observations generalize in an obvious way to more factors, and using the fact that a general tensor on a vector space can be written as a sum of a coefficient ( component ! ) times tensor products of basis vectors and basis covectors, one arrives at the transformation law for any tensor quantity.
- The "'stress energy tensor "'( sometimes "'stress energy momentum tensor "'or "'energy momentum tensor "') is a tensor quantity in physics that describes the density and flux of energy and momentum in spacetime, generalizing the force fields.
- It's difficult to find tensor quantity in a sentence. 用tensor quantity造句挺难的