Why do people prefer $(target-actual)^2$ over $|(target-actual)|$
125934
Minimize absolute values of errors instead of squares
1873
Transpose of inverse vs inverse of transpose
115295
Why are the two dot product definitions equal?
157748
Why should the equality of mixed partials be "intuitively obvious"?
24688
Why are $i$ and $-i$ "more indistinguishable" than $\sqrt{2}$ and $-\sqrt{2}$?
36537
do { ... } while (0) — what is it good for?
3571
Equivalent implicit operators: why are they legal?
90944
Why do we want probabilities to be *countably* additive?
99815
Dividing versus multiplying by inverse in modular arithmetic
22842
The Interpretation of $|\psi|^2$ and the No-Clone Theorem
70369
Why do we use von Neumann ordinals and not Zermelo ordinals?
76547
Why are addition and multiplication commutative, but not exponentiation?
96277
Understand two examples using indirect expansion for variable expansion in arithmetic expressions
4923
Why don't we study algebraic objects with more than two operations?
111616
Why avoid increment ("++") and decrement ("--") operators in JavaScript?
122831
Why does putting a 1/2 in front of the squared error make the math easier?
93360
Performance differences between equal (=) and IN with one literal value