What is the difference between $b and $$b?
112144
variable-variables in PHP
91116
Difference between $ and ()
85167
When A and B are of different order given the $\det(AB)$,then calculate $\det(BA)$
116913
Whats the difference between the following? $n+k-1 \choose k$ ${{n+k-1}\choose{k-1}}$ ${{n+k-1}\choose{n}}$
65928
Difference between alphabet $a$ and "a"
39485
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b')
138419
Sigma algebra and algebra difference
134050
Question about set notation: what does $]a,b[$ mean?
91276
difference between dot product and inner product
75416
what is the difference between >&2 and &>2
6096
If $A+B=AB$ then $AB=BA$
81868
How to prove $\operatorname{Tr}(AB) = \operatorname{Tr}(BA)$?
99610
The difference between += and =+
154356
The "difference" of two ordinals
118981
Proving $\sqrt{ab} = \sqrt a\sqrt b$
135638
The difference between \e and ^[
141961
What is the difference between [[ $a == z* ]] and [ $a == z* ]?