-
\(\delta\):
\delta -
\(\Delta\):
\Delta -
\(\int\):
\int -
\(\iint\):
\iint -
\(\approx\):
\approx -
\(\theta\):
\theta -
\(\alpha\):
\alpha -
\(\cdots\):
\cdots -
\(\nabla\):
\nabla -
\(\prod\):
\prod -
\(\times\):
\times -
\(a\over{b}\):
a\over{b} -
\(\partial\):
\partial -
\(\vec{a}\):
\vec{a} -
\(1 \choose n\):
1 \choose n -
\(\omega\):
\omega -
\(\hat{y}\):
\hat{y} -
\(\overline{y}\):
\overline{y} -
\(\Omega\):
\Omega -
\(\xi\):
\x -
\(\bar x\):
\bar x -
\(\overline{abc}\):
\overline{abc} -
\(\underline{abc}\):
\underline{abc} -
矩阵
\[\begin{bmatrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
\vdots & \vdots & \vdots \\
\end{bmatrix}
\]
\begin{bmatrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
\vdots & \vdots & \vdots \\
\end{bmatrix}
- 分段函数
\[f(x) = \begin{cases}
x + 1 & x \gt 1 \\
2x & others
\end{cases}
\]
f(x) = \begin{cases}
x + 1 & x \gt 1 \\
2x & others
\end{cases}