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。

youdao

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。

youdao