opera test 1

inline inline inline $x + y$ inline inline inline $x + y$ inline inline inline

block block block $x + y$ block block block $x + y$ block block block

\begin{matrix} default & 1 + \frac{a}{b} \\ longdiv & 1 + \frac{a}{b} \\ actuarial & 1 + \frac{a}{b} \\ radical & 1 + \frac{a}{b} \\ box & 1 + \frac{a}{b} \\ roundedbox & 1 + \frac{a}{b} \\ circle & 1 + \frac{a}{b} \\ top & 1 + \frac{a}{b} \\ bottom & 1 + \frac{a}{b} \\ left & 1 + \frac{a}{b} \\ right & 1 + \frac{a}{b} \\ updiagonalstrike & 1 + \frac{a}{b} \\ downdiagonalstrike & 1 + \frac{a}{b} \\ verticalstrike & 1 + \frac{a}{b} \\ horizontalstrike & 1 + \frac{a}{b} \end{matrix}

\begin{matrix} default & a + abc \\ normal & a + abc \\ bold & a + abc \\ bold-italic & a + abc \\ italic & a + abc \\ monospace & a + abc \\ sans-serif & a + abc \\ bold-sans-serif & a + abc \\ fraktur & a + abc \\ double-struck & a + abc \\ script & a + abc \end{matrix}

\begin{matrix} default & 1 + 123 \\ normal & 1 + 123 \\ bold & 1 + 123 \\ bold-italic & 1 + 123 \\ italic & 1 + 123 \\ monospace & 1 + 123 \\ sans-serif & 1 + 123 \\ bold-sans-serif & 1 + 123 \\ fraktur & 1 + 123 \\ double-struck & 1 + 123 \\ script & 1 + 123 \end{matrix}

a + \sqrt{bbb + c}

a + \sqrt[4]{b + c}

{b + c}^{4} {b + c}_{4} {b + c}_{4}^{5}

\overset{4}{b + c} \underset{4}{b + c} {b + c}_{4}^{5}

X 12 ij 34 + X 12 ij 34

error...

{b + c}^{4} {b + c}_{4} {b + c}_{4}^{5}

55 - abc: ms - abc: mtext

\begin{matrix} default & (x, y, z) \\ () & (x, y, z) \\ [] & [x, y, z] \\ {} & \{x, y, z\} \\ ()| & (x| y| z) \\ ()"" & (x y z) \end{matrix}

a b

a 1 + 2 b

\begin{matrix} a & b & c \\ 1 & 2 & 3 \\ x & y & z \end{matrix} + \begin{matrix} c & b & a \\ 3 & 2 & 1 \\ z & y & x \end{matrix} = \begin{matrix} a + c & 2 \times b & a + c \\ 4 & 4 & 4 \\ x + z & 2 \times y & x + z \end{matrix}