If you want some part of text not to be rendered, simply include it in backticks, like this:

`$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $`.

You will get: $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

So you could leave a comment like:

To write down the matrix you can use the syntax $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $ - like here $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

Double dollars are not a way to achieve this - they are used for centered formulas. Writing $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $$ gives you this: $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix}$$

And - as you checked yourself - \\\$ ... \\\$ does not work in this way either. You probably used this because you are used to this from LaTeX. (Still you can use \\\$ inside math mode - as in $\\\$$ which renders as $\$$ - but that's not what you need here.)

If you want some part of text not to be rendered, simply include it in backticks, like this:

`$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $`.

You will get: $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

So you could leave a comment like:

To write down a matrix you can use the syntax $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $ - like here $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

Double dollars are not a way to achieve this - they are used for centered formulas. Writing $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $$ gives you this: $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix}$$

And - as you checked yourself - \\\$ ... \\\$ does not work in this way either. You probably used this because you are used to this from LaTeX. (Still you can use \\\$ inside math mode - as in $\\\$$ which renders as $\$$ - but that's not what you need here.)

If you want some part of text not to be rendered, simply include it in backticks, like this: $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

So you could leave a comment like:

To write down the matrix you can use the syntax $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $ - like here $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

Double dollars are not a way to achieve this - they are used for centered formulas. Writing $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $$ gives you this: $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix}$$

If you want some part of text not to be rendered, simply include it in backticks, like this:

`$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $`.

You will get: $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

So you could leave a comment like:

To write down the matrix you can use the syntax $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $ - like here $ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $.

Double dollars are not a way to achieve this - they are used for centered formulas. Writing $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $$ gives you this: $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix}$$

And - as you checked yourself - \\\$ ... \\\$ does not work in this way either. You probably used this because you are used to this from LaTeX. (Still you can use \\\$ inside math mode - as in $\\\$$ which renders as $\$$ - but that's not what you need here.)