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**1 - 2**of**2**### DOI: 10.2478/v10037-009-0032-8 Vector Function and its Differentiation Formulas in 3-dimensional Euclidean Spaces

"... Summary. In this article, we first extend several basic theorems of the operation of vector in 3-dimensional euclidean spaces. Then introduce three unit vectors: e1, e2, e3 and the definition of vector function in the same spaces. By dint of unit vector the main operation properties as well as the d ..."

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Summary. In this article, we first extend several basic theorems of the operation of vector in 3-dimensional euclidean spaces. Then introduce three unit vectors: e1, e2, e3 and the definition of vector function in the same spaces. By dint of unit vector the main operation properties as well as the differentiation formulas of vector function are shown [?].

### DOI:????? Vector Function and its Differentiation Formulas in 3-dimensional Euclidean Spaces

"... Summary. In this article, we first extend several basic theorems of the operation of vector in 3-dimensional euclidean spaces. Then introduce three unit vectors: e1, e2, e3 and the definition of vector function in the same spaces. By dint of unit vector the main operation properties as well as the d ..."

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Summary. In this article, we first extend several basic theorems of the operation of vector in 3-dimensional euclidean spaces. Then introduce three unit vectors: e1, e2, e3 and the definition of vector function in the same spaces. By dint of unit vector the main operation properties as well as the differentiation formulas of vector function are shown [?].