/sci/ - Science & Math » Thread #11878961

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Anonymous Tue 07 Jul 23:05:36 2020 No.11878961 View Reply Original Report

Quoted By:

How do you do matrices in LaTeX on this board? I tried and it didn't work

Anonymous

Anonymous Wed 08 Jul 2020 00:15:16 No.11879129 Report

Quoted By: >>11879196

It'd be nice if there was a writable sticky for users to practice LaTeX posts to see if they've gotten it correct before posting in a thread.

Anonymous

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Anonymous Wed 08 Jul 2020 00:45:15 No.11879190 Report

Quoted By: >>11879220

Anonymous

Anonymous Wed 08 Jul 2020 00:47:27 No.11879195 Report

Quoted By:

$\displaystyle \left [ \left . \begin{matrix} 1 & 3 & 1 \\ 1 & 1 & -1 \\ 3 & 11 & 5 \end{matrix} \right | \begin{matrix} 9 \\ 1 \\ 35 \end{matrix} \right ] \begin{matrix} ~ \\ II-I \\ III-3I \end{matrix} \\ \left [ \left . \begin{matrix} 1 & 3 & 1 \\ 0 & -2 & -2 \\ 0 & 2 & 2 \end{matrix} \right | \begin{matrix} 9 \\ -8 \\ 8 \end{matrix} \right ] \begin{matrix} ~ \\ ~ \\ II+III \end{matrix} \\ \left [ \left . \begin{matrix} 1 & 3 & 1 \\ 0 & -2 & -2 \\ 0 & 0 & 0 \end{matrix} \right | \begin{matrix} 9 \\ -8 \\ 0 \end{matrix} \right ] \begin{matrix} I+II \cdot 2/3 \\ II\cdot (-1/2) \\ ~ \end{matrix} \\ \left [ \left . \begin{matrix} 1 & 0 & -2 \\ 0 & 1 & 1 \\ 0 & 0 & 0 \end{matrix} \right | \begin{matrix} -3 \\ 4 \\ 0 \end{matrix} \right ] \begin{matrix} ~ \\ ~ \\ ~ \end{matrix} $

Anonymous

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Anonymous Wed 08 Jul 2020 00:47:46 No.11879196 Report

Quoted By:

>>11879129

Anonymous

Anonymous Wed 08 Jul 2020 00:49:28 No.11879202 Report

Quoted By:

$ A=\begin{pmatrix} a_{11} & a_{12} & a_{13} \\ a_{21} & a_{22} & a_{23} \\ a_{31} & a_{32} & a_{33} \end{pmatrix} \\ \\ \\ \bar{A} = \begin{pmatrix} \overline{a}_{11} & \overline{a}_{12} & \overline{a}_{13} \\ \overline{a}_{21} & \overline{a}_{22} & \overline{a}_{23} \\ \overline{a}_{31} & \overline{a}_{32} & \overline{a}_{33} \end{pmatrix} \\ \\ \\ A^T = \begin{pmatrix} a_{11} & a_{21} & a_{31} \\ a_{12} & a_{22} & a_{32} \\ a_{13} & a_{23} & a_{33} \end{pmatrix} \\ \\ \\ \bar{A}^T=\overline{A^T}= A^*=A^\dagger = \begin{pmatrix} \overline{a}_{11} & \overline{a}_{21} & \overline{a}_{31} \\ \overline{a}_{12} & \overline{a}_{22} & \overline{a}_{32} \\ \overline{a}_{13} & \overline{a}_{23} & \overline{a}_{33} \end{pmatrix} \\ \\ \\ \text{if } A = A^\dagger \text{, it's called a HERMITIAN} $

Anonymous

Anonymous Wed 08 Jul 2020 00:51:33 No.11879208 Report

Quoted By:

$\displaystyle A = \begin{pmatrix} 1 & 0 & \cdots & 0 \\ 0 & 2 & \cdots & 0 \\ \vdots & \vdots & \ddots & \vdots \\ 0 & 0 & \cdots & n \end{pmatrix} $

Anonymous

Anonymous Wed 08 Jul 2020 00:58:40 No.11879220 Report

Quoted By: >>11879233

>>11879190
It says /sci/ doesn't support matrices

Anonymous

Anonymous Wed 08 Jul 2020 01:07:13 No.11879233 Report

Quoted By:

>>11879220
right-click on pretty formulas
to see the code that produced it

Anonymous

Anonymous Wed 08 Jul 2020 01:17:16 No.11879254 Report

Quoted By:

$ 102 \!\!\!\!\!\!\!\!\! \frac{~~~~~}{~} \\ \cancel{102} \cancelto{56}{102} $

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