Question Number 220800 by SdC355 last updated on 19/May/25
![To Tinkutara [(a),(b) ], determinant ((a),(b)), ((a),(b) ) , { (a),(b) :} , {: (a),(b) } , determinant (((abcdefg)),((pqrstvw))) is work well but invisible line matrix(?) dosen′t work pls Fix bug](https://www.tinkutara.com/question/Q220800.png)
$$\mathrm{To}\:\mathrm{Tinkutara} \\ $$$$\begin{bmatrix}{\mathrm{a}}\\{\mathrm{b}}\end{bmatrix},\begin{vmatrix}{\mathrm{a}}\\{\mathrm{b}}\end{vmatrix},\begin{pmatrix}{\mathrm{a}}\\{\mathrm{b}}\end{pmatrix}\:,\begin{cases}{\mathrm{a}}\\{\mathrm{b}}\end{cases}\:,\:\:\left.\begin{matrix}{\mathrm{a}}\\{\mathrm{b}}\end{matrix}\right\}\:,\begin{array}{|c|c|}{\mathrm{abcdefg}}\\{\mathrm{pqrstvw}}\\\hline\end{array}\:\mathrm{is}\:\mathrm{work}\:\mathrm{well} \\ $$$$\mathrm{but}\:\mathrm{invisible}\:\mathrm{line}\:\mathrm{matrix}\left(?\right)\:\mathrm{dosen}'\mathrm{t}\:\mathrm{work} \\ $$$$\mathrm{pls}\:\mathrm{Fix}\:\mathrm{bug} \\ $$
Answered by SdC355 last updated on 19/May/25

$$\mathrm{Test}\begin{matrix}{\mathrm{abcd}}\\{\mathrm{pqrs}}\end{matrix} \\ $$
Commented by mr W last updated on 20/May/25

$${you}\:{are}\:{generating}\:{spam}\:{posts}! \\ $$$${i}\:{think}\:{it}'{s}\:{clear}\:{what}'{s}\:{the}\:{issue}. \\ $$$${you}\:{don}'{t}\:{need}\:{to}\:{repeat}\:{it}\:{again} \\ $$$${and}\:{again}. \\ $$
Commented by SdC355 last updated on 20/May/25

$$\mathrm{test2}\:\begin{matrix}{\mathrm{zz}}\\{\mathrm{ww}}\end{matrix} \\ $$
Commented by SdC355 last updated on 20/May/25

$$\mathrm{test3}\begin{matrix}{\mathrm{abs}}\\{\mathrm{pqr}}\end{matrix} \\ $$