Understanding Part and Span operating on expressions with heads that are not List
20424
Head and everything except Head?
125811
Recognizing special cases of a defined function for permuted arguments
13060
What does the caret operator (^) in Python do?
34304
Precedence of the shell logical operators &&, ||
128219
$$, \[ \] and equation environment alignment
84082
Head of a MatrixForm expression?
134273
Bash: Why does this Brace Expression work this way?
136288
Extracting subscripts and superscripts
148656
How to split by commas that are not within parentheses?
98456
n & (n-1) what does this expression do?
10310
Do any lisps have a s-expression as their head, e.g. ((f 2) 3 4)? If not, why?
60083
Expression Tree with string assignment and getting value
141313
Inline elements denoted by {{}}? Cartesian product of these inline elements?
155414
subequations and array in braces
1388
Learning Regular Expressions
10012
Tagging under an equation using underbrace
70416
Coordinative ellipsis with not and unparellel structure