latext公式换行对齐\begin{align*}报错
错误信息如下:
KaTeX parse error: No such environment: align* at position 8: \begin{̲a̲l̲i̲g̲n̲*̲}̲ u \cdot n & =u…
原公式为:
$$
\begin{align*}
u \cdot n
& =u n^T \
& = u(A A^{-1})n^T \
& =(uA)(A^{-1}n^T) \
& =(uA)((A^{-1}n^T)^T)^T \
& =(uA)(n(A^{-1})^T)^T \
& =uA \cdot n(A^{-1})^T \
& =uA\cdot nB \
& =0
\end{align*}
$$
正常情况下,应该显示为: