Why I get an error as missing $, or missing {, or undefined environment, when I want to align the equations while using \mathbb?
32645
Undefined control sequence error \end{gather}
106439
Syntax in align environment
95023
Is it possible to annotate equations (i.e. arrow signs/curly braces) to define each variable?
135433
How can I align the columns of tables in Bash?
95320
Why are square brackets preventing shell expansion?
98955
Error: Bad math evironment delimiter
148277
! Missing $ inserted.  $
89472
How can I write multi line equations with alignment in inline math mode?
157581
Compilation error: missing $ inserted
15360
Why align and equation environment do not tolerate empty lines?
122777
Aligning equations with text with alignat
76159
How to not have an equation in the first line using the align environment?
69890
\xymatrix undefined
126287
In align environment, how can you label some (but not all) of the equations?
97025
Can I get $$...$$ to behave like \[...\]?
93299
Why is brace expansion not supported?
133080
Adding braces around equations