博客

1、插入带编号的公式

• 单行公式

\begin{equation}
	CR=\frac{CI}{RI}
	\end{equation}
	
	Where CI is the consistency index.
		\begin{equation}
	CI=\frac{\lambda - n}{n-I}
	\end{equation}

2、多行公式

\begin{equation}
A(x)=
\begin{cases}
0 & x<a,\\
\frac{x-a}{x-b} & a \leq x \leq \ b ,\\
1 & x>b .
\end{cases} 
\end{equation}
\setlength{\parindent}{2em}
\indent The middle risk grade uses the middle trapezoidal distribution to solve the membership degree of the grade.

\begin{equation}
A(x)=
\begin{cases}
0 & x<a,\\
\frac{x-a}{b-q} & a \leq x < b ,\\
1 & b \leq x < c,\\
\frac{d-x}{d-c} & c \leq x < d ,\\
0 & x \geq d .
\end{cases}
\end{equation}

\begin{equation} \label{eqn2}
N=R(t)+S(t)+I(t)+A(t)+E(t) 
\end{equation}
	
\begin{equation}
\begin{aligned}\left\{\begin{aligned}
\frac{dE}{dt}&=\rho \beta \phi \epsilon (E+A)S-\alpha E  +I \omega (t)   \\
\frac{dS}{dt}&=- \rho \beta \phi \epsilon (E+A)S-I \omega (t)   \\
\frac{dA}{dt}&=\alpha(1-\eta)E-\gamma_A A \\
\frac{dI}{dt}&=\alpha \eta E -\gamma A   \\
\frac{dR}{dt}&=\gamma_A A+\gamma A
\end{aligned}\right.\end{aligned}
\end{equation}

公式引用同时运用\label{}和\ref{}

公式引用参考：

latex 引用公式_天天向上的专栏-CSDN博客_latex引用公式