$$A = \left[\begin{matrix}a_{11}a_{12}a_{13}a_{14}\\a_{21}a_{22}a_{23}a_{24}\\a_{31}a_{32}a_{33}a_{34}\\a_{41}a_{42}a_{43}a_{44}\\a_{51}a_{52}a_{53}a_{54}\end{matrix}\right]$$
A = \begin{bmatrix}
a_{11} & a_{12} & a_{13} & a_{14} \\
a_{21} & a_{22} & a_{23} & a_{24} \\
a_{31} & a_{32} & a_{33} & a_{34} \\
a_{41} & a_{42} & a_{43} & a_{44} \\
a_{51} & a_{52} & a_{53} & a_{54}
\end{bmatrix}
I can't delete these posts.
I hypothesize that what willem has been doing is using the back button of his browser in an attempt to edit the same post after viewing it. That's doesn't work.You didn't think of writing all your tests in one same thread?
Thanks,I had been looking for something like that.Here:- https://www.hostmath.com/ you can play about in your own garden.
Twice, thrice and more times damned.$$A = \left[\begin{matrix}a_{11}a_{12}a_{13}a_{14}\\a_{21}a_{22}a_{23}a_{24}\\a_{31}a_{32}a_{33}a_{34}\\a_{41}a_{42}a_{43}a_{44}\\a_{51}a_{52}a_{53}a_{54}\end{matrix}\right]$$
I can't delete these posts.