Difference between Plus[x_, y_] and Plus[_, _]
97285
More general pattern fails to match everything the more specific pattern does.
145497
What does the  operator do in python?
24465
What does = +_ mean in JavaScript
138938
What is the difference between `a[bc]d` (brackets) and `a{b,c}d` (braces)?
89595
What is the difference of \mathop, \operatorname and \DeclareMathOperator?
87375
Difference between [0-9], [[:digit:]] and \d
19555
Difference between >>> and >>
37356
Why is ++i considered an l-value, but i++ is not?
122635
What is the correct answer for cout << a++ << a;?
21903
What is the difference between [0-9]+ and [0-9]++?
104708
Confused at + and ++ in TikZ
26425
Why does += of a list within a Python tuple raise TypeError but modify the list anyway?
2203
String concatenation: concat() vs "+" operator
59758
Is there any difference between `List x;` and `List x()`
88476
What does (+) do in Oracle SQL?
38967
What is the precedence of the + (plus) operator in Java?
714
What are the differences between "=" and "<-" assignment operators in R?