For instance, it's also the square of the Euclidean norm on R2, the length of a two-dimensional vector, a part of the triangle inequality, and quite a bit more.

例如，R 2 的平方、二维向量的长度、三角不等式等都存在勾股定理。

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Two-and threed imensional euclidean spaces are metric spaces as are inner product spaces vector spaces and certain topological spaces.

二维和三维的欧几里德空间是度量空间。另外，内乘空间、向量空间以及某些拓扑空间等也都是度量空间。

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In this paper, we study the scalarization over Euclidean Jordan algebra vector optimization problem.

本文主要研究欧几里德若当代数向量优化的谱标量化。

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