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Vector đường thẳng
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Vector đường thẳng nghieng
Z
→
=
X
→
+
Y
→
=
X
i
→
+
Y
j
→
=
∇
⋅
Z
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+
∇
×
Z
→
{\displaystyle {\vec {Z}}={\vec {X}}+{\vec {Y}}=X{\vec {i}}+Y{\vec {j}}=\nabla \cdot {\vec {Z}}+\nabla \times {\vec {Z}}}
Vector đường thẳng ngang
X
→
=
X
i
→
=
∇
⋅
Z
→
{\displaystyle {\vec {X}}=X{\vec {i}}=\nabla \cdot {\vec {Z}}}
Vector đường thẳng doc
Y
→
=
Y
j
→
=
∇
×
Z
→
{\displaystyle {\vec {Y}}=Y{\vec {j}}=\nabla \times {\vec {Z}}}