Mathjax test

  1. Tag support
$$a^2+b^2=c^2 \tag {1.1}$$
(1.1)a2+b2=c2

The tag of the above equation is 1.1

  1. Line break support
$$
\begin{split}
a &= b \\
c &= d \\
e &= f
\end{split}\tag{1.2}
$$
(1.2)a=bc=de=f

This should render 3 lines, but may only render the 3 equations in just 1 line.
Try the following code:

$$
\begin{split}
a &= b \newline
c &= d \newline
e &= f
\end{split}\tag{1.3}
$$
(1.3)a=bc=de=f
  1. Equation array support
$$
\begin{eqnarray*}
x^n+y^n &=& z^n \tag{1.4} \newline
x+y &=& z \tag{1.5}
\end{eqnarray*}
$$
(1.4)xn+yn=zn(1.5)x+y=z
  1. Matrix
$$
\begin{eqnarray*}
x^n+y^n &=& z^n \tag{1.4} \newline
x+y &=& z \tag{1.5}
\end{eqnarray*}
$$
(1.6)(a1,a2,,a3a2,a4,,a5,,,am,am+1,,amn)