线性代数导论 (1-Introduction to Vectors)
Introduction to Vectors
Vectors and Linear Combinations
VECTOR ADDITION $
v =
\begin{bmatrix}
v_1 \
v_2 \
\end{bmatrix}
$ and $
w =
\begin{bmatrix}
w_1 \
w_2 \
\end{bmatrix}
$ add to $
v + w = \begin{bmatrix}
v_1 + w_1 \
v_2 + w_2 \
\end{bmatrix}
$
SCALAR MULTIPLICATION $
2v =
\begin{bmatrix}
2v_1 \
2v_2 \
\end{bmatrix}
$
The sum of $c\boldsymbol{v}$ and $d\boldsymbol{w}$ is a linear combination of $\boldsymbol{v}$ and $\boldsymbol{w}$
转载请注明：转载自srzyhead的博客(https://srzyhead.github.io)
