三重积,又称混合积,是三个向量相乘的结果。向量空间中,有两种方法将三个向量相乘,得到三重积,分别称作标量三重积和向量三重积。设 a,b,c 是空间中三个向量,则 (a×b)·c 称为三个向量 a,b,c 的混合积,记作[a b c] 或 (a,b,c) 或 (abc)。
... parallelometer 平行仪 parallelopipedal product 混合积 parallelopipedic contour 平行菱形 ...
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对连续的平方可积强鞅的混合积分的四个基本性质推广到对连续的正交增量鞅的混合积分的情形。
The four basic properties of mixed integrals for the continuous square integrable strong martingales are applied further to continuous martingales with orthogonal increments.
第一章是向量代数,主要介绍向量的线性运算、向量的内积、向量的外积、向量的混合积和双重外积。
The first chapter is about vector algebra, introduces the vector of linear operations, inner product of vectors, vector outer product, vector product and double mixed exterior product.
引入了卡氏和张量混合积空间上的对称化算子和相应的分块矩阵上的混合矩阵函数,给出了关于它们的若干关系式。
Symmetrizing operators on mixed cartesian and tensor product spaces and corresponding mixed matrix functions on partitioned matrices are introduced. Some relation formulae on them are given.
Because the plywood has been sliced into thin pieces that are laminated cross-grain.
因为胶合板是被分割的,层积的混合谷物的板子。
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