User:KeithTyler/TeX markup tests

test zone
$$

\begin{vmatrix} 5 & 4 & {v + 4 \over 12} \\ a & b & 0 \end{vmatrix} \times \begin{vmatrix} 8 \\ 8 \\ 8 \end{vmatrix} \ddots \int^{1}_{\mathbb{N}} \infty

$$

$$ \begin{vmatrix} 2 & 4 \\ 8 \\ & k \end{vmatrix} $$

$$ \begin{bmatrix} 2 & 4 \\ 8 & \begin{bmatrix} a & b \\ c & d \end{bmatrix} \end{bmatrix} $$

$$ \begin{matrix} \mbox{If the coefficient of } {y \over {\hat q}} \\ \mbox{ is equivalent to the ratio of } \\ \sum_{x=-\infty}^{\infty} {k \over \lim_{y \to 0} {\hat q \times x}} ,\\ \mbox{we find that: } \\ \hat q \approx {k \over y} \end{matrix} $$

$$ \sum_{x=-\infty}^{\infty} {k \over {\lim_{y \to 0}} {\hat q \times x}} $$

$$ \lim_{y \to 0} {\hat q \times x} $$

same basic code for these symbols, but when they are inside other elements, super- and subscripts don't align properly!